The population affected most by ultraviolet light are the people with light skin. People with light skin have little to no melanin which protect the skin against the effects of ultraviolet light against the skin. Most people with light skin use sunscreen and sun protect creams.
Effects of Ultraviolet light on Light skin.SunburnUltraviolet light causes sunburn. Sunburn is like a patch on the skin which is discoloured and a bit darker than the normal skin color.
Skin CancerUltraviolet ray causes skin cancer. Both basal cell and squamous cell cancers are mostly found in patients that have exposed their skins to the ultraviolet light.
Aging.Ultraviolet light causes changes in DNA which can lead to premature aging.
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If a mutation occurs in the hypoblast cells of a bilaminar embryo, one might expect birth defects to be present in the..
If a mutation occurs in the hypoblast cells of a bilaminar embryo, one might expect birth defects to be present in embryonic and fetal development.
Specifically in the formation of the embryonic and fetal layers, such as the endoderm and the mesoderm. These layers give rise to many of the body's structures including the organs, muscles, and bones.
Therefore, it may lead to congenital malformations, which can affect multiple organ systems and cause significant health problems. It could also have a large impact on the development and function of the gut.
The formation of the neural crest cells gives rise to many different cell types including neurons and glia, as well as bones, cartilage, and pigment cells.
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a cell is made using zinc and copper. when this cell is made, which element will be reduced? (the values provided were taken off a reduction potential table)
Answer:
Explanation:Zinc and copper are used to create a cell. Which element will be diminished when this cell is created? (The figures given were obtained from a chart of reduction potential)
The copper electrode to the zinc electrode is where the Daniel cell current travels. It produces an emf of 1.1V when operating in normal conditions. Current travels from the Cu electrode to the Zn electrode as electrons move from the Zn rod to the Cu rod. Copper accumulates at the cathode while zinc dissolves at the anode.
High dosages of zinc can result in a copper deficiency since it decreases the amount of copper your body absorbs. Because of this, many medical professionals advise that you take a zinc supplement and 2 milligrams of copper daily.
This chart shows the sequence of a particular gene in three different organisms. Which two organisms do you think are most closely related? Explain your answer. ORGANISM GENE SEQUENCE Organism A TCAGGAACTA Organism B ACAGGAAGTA Organism C TGTAAGTATA
Organism A and Organism B are most likely the most closely related organisms as they share the most similar gene sequences.
What is Gene?gene is found in a particular organism. It is a sequence of nucleotides that makes up a particular gene, which determines the characteristics of that organism. It is a part of the organism's genome and is responsible for the expression of a particular trait or characteristics.A gene is the fundamental structural and functional component of heredity. The DNA that makes up genes. In some cases, genes serve as blueprints for the creation of proteins. In contrast, a large number of genes do not encode proteins. A few hundred DNA bases to more than 2 million bases make up the majority of human genes.To Learn more about Gene from the given link
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Identical twins separated at birth and raised in completely different home environments would be most likely to have similar:
a. religious beliefs.
b. political attitudes.
c. personality traits.
d. moral values.
Identical twins separated at birth and raised in completely different environments are most likely to have the following characteristics: personal trait
A trait is a characteristic or feature of an individual that can be used to describe or distinguish them, such as a personality trait, physical trait, or behavioral trait.
A twin is one of a pair of siblings who are born at the same time and share the same genetic makeup. There are several types of twins including identical twins, who are genetically identical and develop from a single fertilized egg, and fraternal twins, who develop from two separate eggs that are fertilized by different sperm.
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Which of the following observations and inferences led Charles Darwin to his theory of natural selection as a mechanism for evolution?
A
Individuals in a population of any species vary in many heritable traits.
B
Individuals with heritable traits best suited to the local environment will generally produce a disproportionate number of healthy, fertile offspring.
C
A population of any species has the potential to produce far more offspring than will survive to produce offspring of their own.
D
Darwin synthesized his theory of natural selection from all of the listed observations and inferences.
Charles Darwin developed his hypothesis on natural selection as just a process for evolution by combining all of the data and inferences stated above.
Darwin deduced the following conclusions from the following two observations: Although organisms are capable of producing enormous numbers of children, most of these children do not survive, therefore a population's members differ in their heritable features. Darwin's theories on natural selection were shaped by his journey to the Galápagos in 1835. He discovered multiple bird species that were adapted to various environmental niches. The beak shapes, food sources, and methods of food capture varied among the finches as well. Darwin draws two conclusions from just two data points; Population members' inherited features vary among them, according to observation 1. Observation 2: All species have the capacity to have more children than the ecosystem can support, yet a large proportion of these young do not survive and procreate. Various observations regarding the hypothesis of natural selection were made.
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Darwin synthesized his theory of natural selection from all the above observations and hypotheses These observations and hypotheses led Charles Darwin to his theory of natural selection as a mechanism of evolution. Here option D is the correct answer.
Charles Darwin developed his theory of natural selection by synthesizing various observations and hypotheses he made during his travels on the HMS Beagle and through his study of the natural world.
He proposed that natural selection is the mechanism by which species evolve over time through the process of adaptation to their environment.
Darwin's theory of natural selection proposes that within a population of organisms, there is variation in traits. These variations can be inherited by offspring. Those organisms with traits better suited to their environment are more likely to survive and reproduce, passing on their advantageous traits to their offspring.
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Describe the human respiratory system and its functions
The respiratory system is a network of organs to help you breathe
The main function is to supply the blood with oxygen in order for the blood to deliver oxygen for all parts within the body. When we breathe, we inhale oxygen and exhale carbon dioxide.
using 18o as the basis of your discussion, explain how we know that the oxygen released in photosynthesis comes from water
The use of 18O, a heavy isotope, as a tracer to monitor the fate of oxygen atoms during photosynthesis supported van Niel's notion that oxygen generated from photosynthesis derives from water. The investigations revealed that only when the tracer was derived from water was the O2 from plants labeled with 18O.
Plants absorb carbon dioxide (CO2) and water (H2O) from the air and soil during photosynthesis. Water is oxidized within the plant cell, which means it loses electrons, but carbon dioxide is reduced, which means it receives electrons. This converts water to oxygen and carbon dioxide to glucose. Photosystem II uses the energy from the sun to extract electrons from water molecules via proteins and enzymes.
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true/false. vedatuglucose reacts with oxygen to release energy in the human body. during breathing, oxygen is reduced by donating an electron to hydrogen. in this process, glucose is oxidized and carbon dioxide and water are produced.
The statement is true. In the human body, vedatuglucose and oxygen interact to release energy through the oxidation of glucose.
The oxidation of the glucose results in the production of carbon dioxide and water.
Since energy is produced by the reaction of glucose and oxygen, this process is an oxidation reaction. It is an exothermic reaction and this process releases energy. To produce energy, the human body oxidizes glucose. As a result, the oxygen-based reaction is known as a "oxidation reaction."
Energy being released in the respiratory system is a sign that the event is exothermic. When we consume, food degrades and creates glucose. Energy is created in the human body when oxygen and glucose interact.
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the gallbladder is a mixed organ, containing both endocrine and exocrine tissues. stores and concentrates bile. lies adjacent to the inferior vena cava on the superior surface of the liver. is surrounded and protected by the round ligament. is attached to the liver by the falciform ligament.
The correct answer is stores and concentrates bile. The gallbladder stones and concentrates corrosiveness from the liver.
The corrosiveness is also released into the first section of the small intestine( the duodenum), which helps your body break down and absorb fats from food. About 50 of the corrosiveness produced by the liver is first stored in the gallbladder.
This is a pear-shaped organ located directly below the liver. Also, when food is eaten, the gallbladder contracts and releases stored corrosiveness into the duodenum to help break down the fats. Corrosiveness is a fluid made and released by the liver and stored in the gallbladder. Corrosiveness helps with digestion. It breaks down fats into adipose acids, which can be taken into the body by the digestive tract.
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in mitochondria, the rate of atp synthesis during oxidative phosphorylation is tightly coupled to the movement of electrons through the electron transport chain (etc). when adp levels rise and the demand for atp synthesis increases, electron flow through the etc also increases.
Oxidative phosphorylation is the interaction by which ATP amalgamation is coupled to the development of electrons through the mitochondrial electron transport chain and the related utilization of oxygen.
The proton inclination delivered by proton siphoning during the electron transport fasten is utilized to orchestrate ATP. Protons stream down their fixation inclination into the framework through the layer protein ATP synthase, making it turn (like a water haggle) the transformation of ADP to ATP.
This cycle is known as oxidative phosphorylation, in light of the fact that the phosphorylation of ADP to ATP is reliant upon the oxidative responses happening in the mitochondria.
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The process through which ATP synthesis is connected to the production of electrons through the mitochondrial electron transport chain and the corresponding consumption of oxygen is known as oxidative phosphorylation.
ATP is controlled by the proton inclination provided by proton syphoning during the electron transport fasten. Through the layer protein ATP synthase, protons flow down their fixation inclination into the framework, turning (like a water haggle) the conversion of ADP to ATP.
Because the conversion of ADP to ATP depends on the oxidative reactions taking place in the mitochondria, this cycle is also known as oxidative phosphorylation.
Through the redox process, the electron transport chain, or ETC, moves electrons from donors to acceptors. Later, the membrane-wide proton transfer is combined with this transfer. However, this transfer activates ATP synthesis, which modulates the gradient of proton production.
The chain consists of enzyme molecule units. In the end, this chain receives the oxygen molecules through plant respiration. In eukaryotes, a significant ETC is found at the mitochondrial membrane.
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Both in Unit 1 and in Snelgrove’s talk, emphasis is placed on the importance and massiveness of the world’s oceans. Identify some of the facts from both the unit and the video that support this claim.
During his talk, Snelgrove comments that we know more about the Moon or Mars than we do about the deep-sea floor and marine habitat as a whole. Why is this surprising and even ironic?
Snelgrove describes a fishing disaster that occurred where he grew up in Canada in an effort to explain how we are now experiencing “shifting baselines.” Explain what he means by this term.
According to Snelgrove, if you were to suck all of the water out of the ocean, what would you be left with?
Describe what Snelgrove discusses in terms of how the oceans play a part in global collaboration.
Discuss the concerns Snelgrove has regarding the health and safety of our oceans and ocean life.
As he concludes his talk, Snelgrove says, “And as the oceans go, so shall we.” Explain what he means by this statement.
Answer:is try ur hardest
Explanation:is try ur hardest
With which of these conditions or procedures may there be an increased number of megakaryocytes in the bone marrow, but a decreased number of circulating platelets?
A. Folic acid deficiency
B. Aplastic anemia
C. Radiation therapy
D. Massive blood transfusion
Megakaryocytes become so enormous in light of the fact that the DNA inside the phone copies ordinarily — however without the phone going through cell division: a cycle called endomitosis.
Lack of nutrients like B12 and folic corrosive inadequacy. Diminished THPO creation because of liver brokenness. Blood malignant growths or strong organ diseases with metastasis deep down. Chemotherapy and radiation treatment are used to treat blood malignant growths or metastatic disease.
Hematopoietic Development Variables Invigorate the Arrangement of White Platelets. Thrombopoietin (TPO) is a 332 amino corrosive glycoprotein made fundamentally in the liver that invigorates the development of megakaryocytes from CFU-Meg (settlement shaping unit, megakaryocyte).
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These conditions or procedures may there be an increased number of megakaryocytes in the bone marrow, but a decreased number of circulating platelets (A). Folic acid deficiency is correct option.
A folic acid deficiency may cause a rise in megakaryocytes in blood cells but a decrease in moving platelets. The results of enlarged megakaryocytes and considerably decreased platelet synthesis in the marrow prior to splenectomy as well as the surprising increase in platelet production after splenectomy suggest a definite pathogenetic relationship between the spleen and the sickness. Pancytopenia is usually accompanied by megaloblastic anemias brought on by biotin or vitamin B12 deficiency. Thrombocytopenia's is ineffective. There will be normal or even higher megakaryocyte counts in the marrow, but fewer neutrophils will be able to reach the venous return.
Aplastic anemia has fewer megakaryocytes in the bone marrow, which reduces the number of platelets in circulation.
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Cross a homozygous dominant fruit with a heterozygous fruit. What percentage of their offspring will have yellow fruit?
Answer: 25% of their offspring will have yellow fruit
Explanation:
Which statement about extracellular structures (plant cell walls and the extracellular matrix of animal cells) is correct?
Information can be transmitted from these extracellular structures to the cytoplasm. is correct about extracellular structures (plant cell walls and the extracellular matrix of animal cells)
The extracellular matrix (ECM), also known as the intercellular matrix in biology, is a three-dimensional network of extracellular macromolecules and minerals, such as collagen, enzymes, glycoproteins, and hydroxyapatite, that support neighboring cells structurally and biochemically. The composition of the extracellular matrix (ECM) varies among multicellular structures due to the independent evolution of multicellularity in many multicellular lineages; yet, cell adhesion, cell-to-cell communication, and differentiation are ECM functions that are shared.
The interstitial matrix and basement membrane make up the extracellular matrix of animals. Many different animal cells have interstitial matrix (i.e., in the intercellular spaces). In the interstitial space, polysaccharide and fibrous protein gels operate as a compression buffer to lessen the stress on the ECM.
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Which of the following combinations of metabolic reactions would be expected to yield the greatest decrease in circulating (blood) fuels?
Lipogenesis and protein synthesis are the next metabolic pathways that would be anticipated to result in the biggest reduction in circulating (blood) fuels.
What is the process of metabolism?Catabolism and anabolism are two processes that take place during your metabolism. To keep you healthy, these two processes are carefully balanced: Food is broken down into simpler forms during the catabolism process, which releases energy. The act of harnessing this energy to create and repair new cells in your body is known as anabolism. The chemical processes through which food is converted into energy in the body's cells are referred to as metabolism (pronounced meh-TAB-uh-liz-um). Our bodies need this energy in order to move, think, or develop.
What is the most common metabolic reaction?A relatively frequent metabolic process that involves amino, hydroxyl, or sulfhydryl groups is acetylation. Acetyltransferases catalyze the reaction by transferring the acetyl group from acetyl-coenzyme A.
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. An experiment studies the effects of an experimental drug on the number of offspring a mother mouse has. 10 female mice are given the drug and then impregnated. The number of mice in their litters is compared to the litters of mice that did not take the drug. Based on the data, what would you conclude about the drug, explain if it worked or not and give your reasoning.?
I would conclude that the drug did not work because although the data do not look the same, they average in the same way.
What is an experiment?An experiment is described as a procedure carried out to support or refute a hypothesis, or determine the efficacy or likelihood of something previously untried.
Since the experiment studies the effects of an experimental drug on the number of offspring a mother mouse has, the number of mice in their litters is compared to the litters of mice that did not take the drug should way different average values.
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Based on the picture of the map, why does Buenos Aries have a higher ocean surface temperature than Cape Town even though they have the same latitude?
Based on the picture of the map, why does Buenos Aries have a higher ocean surface temperature than Cape Town even though they have the same latitude because energy is transferred from the air to the ocean.
What is Temperature?This is referred to as the degree of hotness or coldness of a substance and it is influenced by thermal energy with the S.I unit being Kelvin.
According to the map we can deduce that Buenos Aries and Cape town are on the same latitude but the former has a higher ocean surface temperature because energy is transferred from the air to the ocean which is why it was chosen as the correct choice.
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the open ocean is responsible for a large amount of the earth's net primary productivity (npp) because it contains vast expanses of phytoplankton, which are microscopic photosynthetic organisms that form the base of the oceanic food web. phytoplankton are responsible for a significant portion of the earth's npp because they are able to use sunlight and dissolved nutrients to produce organic matter through photosynthesis. additionally, the vastness of the open ocean allows for larger populations of phytoplankton to exist and thus produce more organic matter.
The open ocean contributes because of its enormous population of phytoplankton, which can produce organic matter through photosynthesis using sunlight and dissolved nutrients. So, all the given statements are correct.
Since there are more phytoplankton due to the size of the ocean, NPP is higher. Phytoplankton make up a sizable portion of the Earth's NPP because they utilise light and dissolved nutrients to create organic matter through photosynthesis. Additionally, because of the open ocean's size, there are larger populations of phytoplankton, which increases the production of organic matter. The primary producers of the ocean are phytoplankton, which use photosynthesis to create enormous amounts of organic matter. The marine ecology as a whole and the maritime food web are both supported by them. Additionally, phytoplankton is crucial to the global carbon cycle because it absorbs a significant amount of carbon dioxide through photosynthesis, which mitigates the effect of greenhouse gases.
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Choose all correct statements regarding to Phytoplankton
1) The open ocean is responsible for a large amount of the earth's net primary productivity (NPP) because it contains vast expanses of phytoplankton, which are microscopic photosynthetic organisms that form the base of the oceanic food web.
2) Phytoplankton are responsible for a significant portion of the earth's NPP because they are able to use sunlight and dissolved nutrients to produce organic matter through photosynthesis.
3) The vastness of the open ocean allows for larger populations of phytoplankton to exist and thus produce more organic matter.
Which step in photosynthesis does not need light? (1 point)
O Carbon dioxide and hydrogen combine to make glucose.
Water splits into hydrogen and oxygen.
Chlorophyll absorbs energy.
O Oxygen is released.
Answer:
The fourth step in photosynthesis, known as the Calvin cycle, does not require light.
Explanation:
a central focus of research at the body farm concerns decomposition, which is mainly comprised of two processes: autolysis and putrefaction. identify which of the following are characteristics of autolysis, putrefaction, or both.
Decomposition is the first step in the process of recycling nutrients used by an organism (plant or animal) to build its body.
It is the process through which dead tissues break down and transform into more fundamental organic forms. These serve as a major source of food for many of the species that make up ecosystem bases. The species that carry out the process of decomposition are called detritivores.
The direct translation of the word "detritivore" is "feeds on dead or decaying organic things." Numerous species of decomposers and cooperate or operate apart from one another. Each is responsible for a certain phase of the breakdown process to autolysis and putrefaction. Because the corpse lacks moisture, the first stage of postmortem decomposition is called initial decay.
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the subfield within biological anthropology that is most likely to study population events that explain the observed genetic patterns in a population is
The subfield within biological anthropology that is most likely to study population events that explain the observed genetic patterns in a population is population genetics.
Population genetics is the study of genetic variation and evolution within populations. This subfield uses the principles of genetics and evolution to understand how genetic patterns is distributed within and among populations and how it changes over time. Population genetics is concerned with understanding the genetic makeup of populations, how genetic variation is generated, how it is maintained, and how it is passed down from one generation to the next. It also looks at how population size, migration, and natural selection genetic patterns of genetic variation. By studying population events, population genetics can help to explain the observed genetic patterns in a population, such as genetic drift, natural selection, gene flow, and mutation, and how they contribute to population evolution.
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5 reasons of why we do collect biological specimen
Scientists often require keeping a stock of biological collections because it is not possible for a scientist to every time go out and get a sample.
What are the requirements of scientist?Scientists may be require which is comparing the several of his biological subjects that might be or not always be found in the area, so it has the important to keep the collection.
It just depends on the type as well as the size of the organism in question. Certain organisms like the butterfly would not be available in the area where the lab has been located.
Therefore, Scientists often require keeping a stock of biological collections because it is not possible for a scientist to every time go out and get a sample.
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Use the following simple predator-prey relationships to answer the other interactions exist in this system): Mice question (assume no mice are consumed cat grain grown by farmer before it can be harvested The by several species of snakes, which themselves are consumed by hawks population of snakes were suddenly wiped out by disease, the explain the mice; and hawk populations, and long- tem effects on the grain_ why these effects would be observed.
In this predator-prey system, mice are prey for various snake species, which are then eaten by hawks. If snakes were suddenly wiped out by illness, the mouse population.
would most likely expand since there would be fewer predators to keep them in check. As a result, the hawk population is expected to decline since there will be less food available for them to devour. In terms of the farmer's grain, the long-term consequences are anticipated to be good. With more mice, there would be greater predation on the grain and less agricultural damage. However, it is worth mentioning that a rise in mouse population might be troublesome for farmers, who may need to take precautionary steps.consumed cat grain grown by farmer before it can be harvested The by several species of snakes, which themselves are consumed by hawks population of snakes were suddenly wiped out by disease, the explain the mice; and hawk populations, and long- tem effects on the grain.
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Who did Mrs. B reprimand for leaving work early?
Law of superposition
If you're communicating via email or in person, be clear about your expectations from the beginning, let them know as soon as you can, and provide time for discussion later.
What do you say when you leave work early?A throbbing headache One of the most believable personal excuses for leaving early is a severe migraine, A family emergency, a sudden illness, a medical appointment, other important appointments, a family member's illness, or an illness of your pet.A company's acquisition, merger, or reorganisation are all valid reasons to leave your position, as are your desires for change in your career, industry, workplace, leadership, or income. There may also be a role for the family situation.You must confront her if you observe her departing early once more without your consent. You have two options here: either stop her right away, tell her it's not time to go, and send her back to work, or talk to her about it.To learn more about email refer to:
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IM or subq Epinephrine is the first-line treatment for anaphylaxis. Epinephrine will cause vasoconstriction (this will increase the blood pressure and decrease swelling) and bronchodilation (this will dilate the airways). This patient's cardiovascular and respiratory system is compromised. Therefore, epinephrine will provide fast relief with anaphylaxis.
Answer:
IM or subq Epinephrine is the first-line treatment for anaphylaxis. It is an injectable medication that is administered either intramuscularly (IM) or subcutaneously (subq). Epinephrine is a hormone and a neurotransmitter that plays a vital role in the body's response to stress. It works by causing vasoconstriction, which increases blood pressure and decreases swelling, and bronchodilation, which dilates the airways. This is particularly useful in anaphylaxis, which is a severe allergic reaction that can cause life-threatening symptoms such as airway constriction, difficulty breathing, and low blood pressure. By administering epinephrine, it will provide fast relief in anaphylaxis, as it will help to open the airways, increase blood pressure, and reduce swelling, thus improving the patient's cardiovascular and respiratory function.
According to the accompanying figure, which of the following explains why the red panda is an important species to preserve?A) Red pandas are a symbol of conservation efforts.B) Red pandas live in areas that are critically endangered.C) Seals are more important to preserve than the red panda because the ocean environment is critically endangered.D) Phylogenetically distinct species are high-priority species to target for conservation.
The statement regarding the red panda according to the attached image is a phylogenetically distinct species is a high-priority species to be targeted for conservation.
The correct answer is D.
In the phylogenic picture, only the red panda has no expansion at the ends, which means that the red panda species is threatened with extinction. So, the red panda is important to be preserved.
In contrast to other animal species, the end of the branch has an expansion, meaning that the species represent more than one species. As weasels, badgers, and branch-tip otters expand, populations of these animals do not yet need to be conserved.
This question is accompanied by an image.
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in a flowering plant species the diploid or 2n chromosome number is 18. how many chromosomes would you expect to find in the endosperm of this species? please choose the correct answer from the following choices, and then select the submit answer button. answer choices 36 9 27 18
The endosperm cell in an angiosperm plant has 18 chromosomes.In a process known as two fold fertilization, the polar nuclei (2n) and sperm nucleus (n) fuse to form triploid (3n) endosperm cells.
Different plant species have different endosperm development patterns.
Angiosperm seeds include endosperm, a substance that protects and feeds the developing embryo (flowering plants). In some seeds (like pea and bean seeds), the endosperm is totally absorbed at maturity, and the fleshy, food-storing cotyledons feed the developing embryo.
By providing nutrition, shielding the embryo, and regulating embry+o- growth by functioning as a mechanical barrier throughout seed development and germination, the endosperm supports embryonic growth in a significant way.
Angiosperm seeds include endosperm, a substance that protects and feeds the developing embryo (flowering plants).
In some seeds (like pea and bean seeds), the endosperm is totally absorbed at maturity, and the fleshy, food-storing cotyledons feed the developing embryo.
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retroviruses such as hiv hiv and hepatitis b b virus use rna rna as their genetic material rather than dna dna . in addition, they contain molecules of reverse transcriptase, an enzyme that uses an rna rna template to synthesize complementary dna dna . which of the following best predicts what will happen when a normal cell is exposed to a retrovirus?
The best predictions in this are that when a normal cell is exposed to a retrovirus, the reverse transcriptase will make DNA from the viral RNA, which can be incorporated into the host's genome and subsequently transcribed and translated.
A specific kind of virus that uses RNA as its genetic material rather than DNA. Reverse transcriptase is an enzyme that is used to integrate into the DNA of the host cells. This enables the virus to replicate often in the host cells. Human immunodeficiency virus (HIV), which causes AIDS, is a class of retrovirus.
Retroviruses, including the HIV and hepatitis B viruses, have RNA rather than DNA in their genetic makeup. Reverse transcriptase molecules are also present in them.
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Correct Question:
Retroviruses such as HIV and hepatitis B virus use RNA as their genetic material rather than DNA. In addition, they contain molecules of reverse transcriptase, an enzyme that uses an RNA template to synthesize complementary DNA. what will be the best predicts and what will happen when a normal cell is exposed to a retrovirus?
When a normal cell is exposed to a retrovirus such as HIV or hepatitis B virus, the virus will enter the cell and use reverse transcriptase to convert its RNA into a complementary DNA form.
This DNA can then integrate into the host cell's genome and become a permanent part of the cell's genetic material. The best predictors of a retroviral infection are exposure to the virus and the presence of viral genetic material or antibodies in the blood. This is because retroviruses can persist in the body for long periods of time, even if the person does not show any symptoms of illness. Once a retrovirus has integrated its genetic material into the host cell's genome, it can alter the normal functioning of the cell and potentially cause disease. For example, in the case of HIV, the virus attacks and destroys immune cells, leading to a weakened immune system and the development of acquired immunodeficiency syndrome (AIDS). Similarly, in the case of hepatitis B virus, the virus can cause liver damage and lead to the development of liver disease. In conclusion, the integration of retroviral genetic material into the host cell's genome is a critical step in the development of retroviral infections and diseases. The presence of viral genetic material or antibodies in the blood is the best predictor of a retroviral infection, and exposure to the virus is a risk factor for the development of retroviral illness.
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The complete question is :
Retroviruses such as HIV and hepatitis B virus use RNA as their genetic material rather than DNA. In addition, they contain molecules of reverse transcriptase, an enzyme that uses an RNA template to synthesize complementary DNA. what will be the best predicts and what will happen when a normal cell is exposed to a retrovirus?
Use the drop-down menus to identify whether the phrase describes asexual or sexual reproductionfour daughter cellstwo daughter cellsmeiosis mitosis genetic variation identical DNA fertilization
Use the drop-down menus to identify whether the phrase describes asexual or sexual reproduction four daughter cellstwo daughter cellsmeiosis mitosis genetic variation identical DNA fertilization
The process of reproduction in cells that does not involve joining gametes that is known as asexual reproduction. The process of joining gametes that is an egg cell and a sperm cell for reproduction is known as sexual reproduction.
The phrase of sexual reproduction four daughter cells based on genetic variation identical DNA fertilization is to produce gametes, or sex cells. When a parent cell splits into two identical daughter cells of the same size it occurs the process of binary fission. Two daughter cells is asexual reproduction in which they include binary fission, fragmentation, and budding.
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It's complete question is:
Use the drop-down menus to identify whether the phrase describes asexual or sexual reproduction.
four daughter cells - sexual
two daughter cells - asexual
meiosis - sexual
mitosis - asexual
genetic variation - sexual
identical DNA - asexual
fertilization - sexual
Which cell is unspecialized ?