Esophageal varices are not caused by a malfunction of the lower esophageal sphincter. False
Esophageal varices are enlarged and swollen veins in the lower part of the esophagus that occur as a result of increased pressure in the veins that bring blood to the liver. This condition is usually caused by liver diseases such as cirrhosis, hepatitis B and C, or alcohol-related liver disease, which can cause scarring and blockage of blood flow through the liver.
When blood flow is obstructed, it backs up into the veins in the esophagus, causing them to swell and become fragile, which can lead to potentially life-threatening bleeding.
Learn more about Esophageal varices
https://brainly.com/question/31286940
#SPJ4
False. Esophageal varices are most commonly caused by portal hypertension, which is increased pressure in the veins that bring blood to the liver.
This can be caused by liver disease or other conditions that affect blood flow through the liver. The lower esophageal sphincter may play a role in the development of varices, but it is not the primary cause.
To know more about sphincters, click here:-
https://brainly.com/question/15582646
#SPJ11
The model shows a specialized cell in the nervous system. Schwann cell What is this type of specialized cell called? OA. Tracheid OB. Stem cell OC. Osteocyte OD. Neuron
Schwann cells are specialized cells of the nervous system which arise from the stem cells of the neural crest.
The correct option is option B.
The neural crest cells which are basically known as the neural crest stem cells happen to produce a number of certain sub-lineages, one of these sub-lineages are the Schwann cells which are the glial cells of the peripheral nerves.
They can be either the non-myelinating type or the myelinating type. Schwann cells basically serve the function as the myelinating cell of the PNS as well as the support cells of the neurons.
Hence, the correct option is option B.
To know more about neurons
https://brainly.com/question/6260412
#SPJ1
sauropodomorpha are defined on the basis of their small skulls (~5ody length), large thumb with claw, elongate femur, and elongate teeth with serrated crowns true or false
False. Sauropodomorpha are defined by a suite of skeletal features, including elongated necks, small heads, long tails, and columnar limbs, among others.
These features allowed them to grow to immense sizes and become some of the largest animals to have ever lived on land. While some sauropodomorphs may have had small skulls, large thumbs with claws, elongate femurs, and elongate teeth with serrated crowns, these are not defining characteristics of the group as a whole.
Sauropodomorpha is a clade of dinosaurs that includes the sauropods, a group of long-necked, herbivorous dinosaurs that were some of the largest land animals to have ever existed. Sauropodomorpha also includes some earlier, smaller dinosaurs that are more basal to the group, such as Plateosaurus and Massospondylus.
To know more about skulls here
https://brainly.com/question/28200342
#SPJ4
by inhibiting calcium channels, what effect does alcohol have a neurotransmission
Alcohol is a central nervous system depressant that affects various neurotransmitter systems in the brain, including the GABA and glutamate systems.
When consumed, alcohol inhibits the voltage-gated calcium channels in the presynaptic neurons, which are responsible for the influx of calcium ions necessary for neurotransmitter release. This results in a decreased release of neurotransmitters, particularly glutamate, which is the main excitatory neurotransmitter in the brain.
As a result, alcohol slows down neurotransmission and leads to a decrease in cognitive and motor functions, including impaired judgment, slowed reaction time, and loss of coordination. The inhibitory effect of alcohol on calcium channels also contributes to its sedative and anxiolytic effects.
Learn more about neurotransmitter systems
https://brainly.com/question/31118590
#SPJ4
in the exercise using known microbes, was the thermal death time or the thermal death point determined?
The thermal death time refers to the amount of time required at a specific temperature to kill a particular microbe or population of microbes.
On the other hand, the thermal death point refers to the specific temperature required to kill a particular microbe or population of microbes in a given amount of time.
Both the thermal death time and the thermal death point are important parameters for determining the effectiveness of a particular heat treatment for microbial control. The determination of which parameter to focus on would depend on the specific objectives of the exercise and the nature of the microbe being studied.
learn more about thermal death time HERE
https://brainly.com/question/13052192
#SPJ11
PLS HELP ME I NEED THIS TODAY!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Write a 4-5-sentence paragraph that evaluates the effect of rainforest deforestation based on the loss of specific plant structures and functions from the ecosystem. Focus your essay on the loss of leaves, stems, and roots, and use the term transpiration in your answer.
Mount Pinatubo ejected large volumes of gas and ash into the atmosphere during its eruption in June 1991. Scientists measured an average global temperature decline of about 2% during the next year. if the average temperature of an area was 25*C prior to the eruption what was the temperature the next year?
Following the Pinatubo explosion, the region's average temperature would be about 24.5°C.
What is a region?Areas are utilised in a variety of disciplines, including geography, physics, engineering, and architecture. In these sectors, the term "area" refers to the size of a surface, such as a building's floor area or a three-dimensional object's surface area.
The size of an object with three dimensions or the pace of change of an equation in mathematics can both be calculated using areas. A region's or surface's size in two dimensions is expressed as an area. Usually, it is expressed in square units like square metres or square feet.
The extent of a region or shape.
To know more about area visit :
https://brainly.com/question/27683633
#SPJ1
the chordae tendineae attach to the lower surface of cusps of the ______ valve and prevent the valve from flipping into the atrium when the right ventricle is contracting.
The chordae tendineae attach to the lower surface of the cusps of the tricuspid valve and prevent the valve from flipping into the atrium when the right ventricle is contracting.
What is the importance of chordae tendineae attaching to the lower surface of cusps?
This is an important mechanism to ensure proper blood flow from the atrium to the ventricle and prevent backflow. On a separate note, pupillary refers to the size and response of the pupils, which are controlled by the autonomic nervous system. The atrium and ventricle are two of the four chambers of the heart, with the atrium receiving blood and the ventricle pumping it out to the rest of the body.
The chordae tendineae attach to the lower surface of the cusps of the tricuspid valve and prevent the valve from flipping into the atrium when the right ventricle is contracting. The term "pupillary" is not relevant to this topic, as it relates to the eye's pupil, not the heart. In summary, the chordae tendineae play a crucial role in ensuring the proper function of the tricuspid valve, connecting it to the right ventricle and preventing backflow into the atrium.
To know more about Chordae tendineae, visit:
https://brainly.com/question/15061075
#SPJ11
why are angiotensin-converting enzyme (ace) inhibitors contraindicated in hypovolemia or hypotension? (select all that apply.)
Angiotensin-converting enzyme (ACE) inhibitors are a class of drugs commonly used to treat hypertension. They work by inhibiting the conversion of angiotensin I to angiotensin II, a powerful vasoconstrictor, thus reducing blood pressure..
However, in cases of hypovolemia (low blood volume) or hypotension (low blood pressure), the use of ACE inhibitors can be contraindicated. This is because ACE inhibitors can further decrease blood pressure, which can worsen hypotension or hypovolemia and potentially lead to hypoperfusion of vital organs.
Therefore, caution should be taken when prescribing ACE inhibitors to patients with low blood volume or pressure, and alternative treatment options should be considered.
Learn more about Angiotensin-converting enzyme
https://brainly.com/question/9381741
#SPJ4
Full Question: why are angiotensin-converting enzyme (ace) inhibitors contraindicated in hypovolemia or hypotension?
Which of the following provides the best evidence that Earth's climate has changed over time?
A. the different varieties of flowering plants
B. the presence of insect bodies in hardened sap
C. the discovery of crocodile fossils in Greenland
D. the action of wind breaking down rocks into small pieces
The best evidence that Earth's climate has changed over time is the presence of crocodile fossils in Greenland (Option C).
The tropical circulation is what?Singapore's weather systems are mostly driven by tropical circulation. Hadley Cell, ITCZ, and Trade Winds. Hadley cells are air circulations in the tropics made up of sinking air in the subtropics, around 30° north and south of the equator, and rising air towards the equator.
How does the climate impact atmospheric circulation?Heat is moved over the Earth's surface through atmospheric circulation, which has an impact on the water cycle, including cloud formation and precipitation events. Our everyday weather is caused by the movement of air masses, and regional climate and ecosystems are influenced by long-term patterns in circulation.
To know more about crocodile visit:-
https://brainly.com/question/29470852
#SPJ1
the radial arrangement of microtubules around the polar centrioles in an animal cell is called a(n)
Aster refers to the radial arrangement of microtubules surrounding the polar centrioles in an animal cell.
Nine microtubule triplets form the centriole, which is a circular structure. Most of the time, the centrioles that are next to each other are at right angles. Triplets are the arrangement of nine microtubules in a ring.
The term "array" refers to the arrangement of microtubules in cilia or flagella. Q. Statement: The game plan of axonemal microtubules in cilia or flagella is called the 9+2 cluster. Reason: The axoneme typically consists of a pair of centrally located microtubules and nine pairs or doublets of radially arranged peripheral microtubules.
Nine triplet microtubules in a circular arrangement make up the majority of centrioles. A triplet microtubule consists of an entire microtubule, the A-tubule, and two additional partial microtubules, the B- and C-tubules, which are attached to it.
To learn more about microtubules here
https://brainly.com/question/12493051
#SPJ4
which statement about evolution is accurate?(1 point) responses animals, plants, and microbes have their own separate, unrelated ancestries. animals, plants, and microbes have their own separate, unrelated ancestries. dna is the only extant evidence supporting the theory of evolution. dna is the only extant evidence supporting the theory of evolution. living things have adapted and changed over time for specific, discoverable reasons. living things have adapted and changed over time for specific, discoverable reasons. scientists no longer study evolution because it has been proven.
Living things have evolved and changed over time for specific, observable reasons, as stated by evolution. The correct answer is (C).
The process by which a population's genetic material changes over time is called evolution. Changes in genes, novel traits, and new species can all be the result of evolution, which is a reflection of how organisms adapt to their changing environments.
One of the mechanisms of evolution is natural selection. It is more likely that organisms will survive and pass on the genes that contributed to their success if they are better adapted to their environment. This interaction makes species change and veers over the long haul.
Natural selection is based on the idea that organisms with traits that can be passed down better adapt to their environment than other organisms of the same species do. When compared to other members of the species, this enables superior survival and reproduction, resulting in evolution.
Learn more about evolution here
https://brainly.com/question/31440734
#SPJ4
Q-Which statement about evolution is accurate? (1 point)
a. DNA is the only extant evidence supporting the theory of evolution.
b. Animals, plants, and microbes have their own separate, unrelated ancestries.
c. Living things have adapted and changed over time for specific, discoverable reasons.
d. Scientists no longer study evolution because it has been proven
melanosomes most likely move along microtubules that originate in and radiate from the
Melanosomes most likely move along microtubules that originate in and radiate from the as Melanosomes are organelles responsible for producing and storing melanin pigment in skin cells.
These melanosomes move along microtubules, which are a part of the cell's cytoskeleton. Microtubules originate from and radiate outwards from the cell's centrosome, which acts as the main organizing center for microtubules in the cell.
This movement is crucial for the distribution of melanin within the skin cells, which determines skin pigmentation. The regulation of this process is essential for preventing skin disorders, such as albinism or hyperpigmentation.
Overall, the movement of melanosomes along microtubules plays a critical role in the maintenance of skin pigmentation and health.
To know more about skin pigmentation click on below link:
https://brainly.com/question/28152000#
#SPJ11
which statement about the globin genes in humans is false? the genes are also found in other mammals. they are an example of a gene family. all are expressed at the same time. some different genes carry out different functions. all arose from a single common ancestor gene.
The statement "all are expressed at the same time" is false in the globin genes in humans. Option B is the correct answer.
The globin genes in humans are a family of genes that encode for the globin subunits of hemoglobin, the protein responsible for carrying oxygen in red blood cells.
The globin genes are found in many other mammals as well and are an example of a gene family, meaning that they share a common ancestor gene but have diverged over time to perform slightly different functions.
Different globin genes are expressed at different times and in different tissues, depending on their specific functions.
While the globin genes share a common ancestor, they have undergone gene duplication and divergence to produce specialized functions such as oxygen transport, carbon dioxide transport, and embryonic development.
Learn more about the globin genes at
https://brainly.com/question/30467608
#SPJ4
hypochlorhydria may most likely result from what condition?
Low stomach acid can cause achlorhydria, autoimmune disorders, gastritis, skin ailments like acne or dermatitis, and pernicious anaemia, among other illnesses.
A disorder known as achlorhydria occurs when the stomach is unable to create hydrochloric acid, which is one of the elements of gastric acid. The body is guarded against infections taken with food or water by hydrochloric acid, which also aids in the digestion of food. Elderly individuals frequently have atrophic gastritis, which causes hypochlorhydria and decreased stomach output. There is disagreement about whether atrophic gastritis and the decline in stomach acid output are due to Helicobacter pylori infection or to normal ageing processes.
To know more about achlorhydria, click here:
https://brainly.com/question/13593806
#SPJ4
Hypochlorhydria may most likely result from a condition or disease that affects the production or release of stomach acid, such as autoimmune gastritis, chronic gastritis, pernicious anemia, or Helicobacter pylori infection.
Hypochlorhydria is a deficiency of stomach acid. If you don't have enough stomach acid, you can't digest food properly or absorb its nutrients. This leads to indigestion, malnutrition and sometimes bacterial overgrowth.
A condition characterized by low levels of stomach acid, may most likely result from a disease called atrophic gastritis, which causes inflammation and damage to the stomach lining, leading to reduced acid production.
to know more about stomach acid please visit :-
https://brainly.com/question/8836658
#SPJ11
a city council is debating different alternatives for purifying water from a local reservoir. the council is considering ion exchange and reverse osmosis. bacterial contamination of the water supply is the primary concern, and the council has decided that dealing with this is the main criteria for their choice. which decision is the most likely outcome of this debate?(1 point)
The most likely outcome of this debate is that the council will choose reverse osmosis, as it is a more effective method for removing bacterial contamination from water compared to ion exchange.
Water is a chemical compound that has no flavour, colour, or odour and is necessary for life. It is the most prevalent substance on the earth and covers more than 70% of its surface. Numerous biological functions, including digestion, metabolism, and temperature regulation, depend on water. Additionally, it is a universal solvent that enables the transport and dissolution of several compounds in both the body and the environment. Ice, liquid, and gaseous water vapour are the three different physical states of water. The production of droplets and capillary action are made possible by its exceptional trait of high surface tension.
Learn more about water here:
https://brainly.com/question/31019279
#SPJ11
true or false once a couple makes a commitment to an intimate relationship is made by a couple, the relationship culture becomes static.
The statement "once a couple makes a commitment to an intimate relationship is made by a couple, the relationship culture becomes static." is false.
A relationship culture is not static even after a commitment is made because it evolves continuously based on various factors. Couples need to adapt to changes in their lives, such as personal growth, external circumstances, and evolving communication styles.
As a result, relationship culture requires ongoing effort and nurturing to maintain a healthy and successful partnership. Open communication, understanding, and flexibility are crucial components for a couple to effectively navigate changes and challenges throughout their relationship.
To know more about personal growth click on below link:
https://brainly.com/question/31453516#
#SPJ11
5) energy released from the electron transport chain is used to pump h ions into which location in eukaryotic cells? a) cytoplasm adjacent to the mitochondrial outer membrane b) mitochondrial inner membrane c) mitochondrial intermembrane space d) mitochondrial matrix
Energy released from the electron transport chain is used to pump h ions into Mitochondrial intermembrane space location in eukaryotic cells Therefore the correct option is C.
This process is called chemiosmosis. The H+ ions move through protein channels, known as ATP synthase, and are actively transported across the inner membrane of the mitochondria. When they reach the other side of the membrane, they bind to ADP molecules and form ATP,
which is then released back into the cytoplasm for use in metabolic processes throughout the cell. By transferring H+ ions through a concentration gradient this process stores energy which can be used by other parts of the cell.
Hence the correct option is C.
To know more about electron transport chain visit:
https://brainly.com/question/24372542
#SPJ4
an arrangement of microtubules located in the matrix of cilia and flagella is called the _
An arrangement of microtubules located in the matrix of cilia and flagella is called the axoneme.
The axoneme is the structural core of cilia and flagella, which are long, whip-like structures that protrude from the surface of cells. It consists of nine microtubule doublets that surround a central pair of microtubules, arranged in a cylindrical pattern.
The microtubules are connected by radial spokes and nexin links, which provide stability and flexibility to the axoneme. The movement of cilia and flagella is generated by the sliding of the microtubule doublets against each other, powered by the ATP-dependent activity of dynein motor proteins.
The axoneme is essential for many biological processes, including the motility of sperm cells, the clearance of mucus from the respiratory tract, and the movement of fluid in the female reproductive system.
To know more about microtubules refer here:
https://brainly.com/question/13186024#
#SPJ11
A defect in the _____ results in difficulty in visual detection of color and fine detail. a. lens. b. cones. c. rods. d. cones and rods.
A defect in the cones results in difficulty in the visual detection of color and fine detail. The correct option is b.
Cones are specialized photoreceptor cells located in the retina of the eye that is responsible for detecting color and fine detail. A defect in the cones can result in difficulty in the visual detection of color and fine detail, which is known as color blindness or color vision deficiency. This condition can be genetic or acquired and affects both men and women.
In some cases, people with color blindness may only be able to distinguish between two or three colors, while others may see the world in shades of grey. There are different types of color blindness, including protanopia, deuteranopia, and tritanopia, each of which affects the ability to perceive different colors.
While color blindness is not a serious medical condition, it can affect a person's ability to perform certain tasks, such as driving or identifying color-coded objects, and may require special accommodations.
To know more about visual detection refer here:
https://brainly.com/question/10264696#
#SPJ11
the epiglottis is a structure that needs to be strong but extremely flexible. what type of tissue gives the epiglottis this property? multiple choice
The correct answer is b) Cartilage.
The epiglottis is made up of elastic cartilage, which is a type of cartilage that contains elastic fibers, giving it the ability to be both strong and flexible.
The epiglottis is a flap of tissue that is located at the base of the tongue and is responsible for directing food and liquid into the esophagus during swallowing while preventing them from entering the airway. It needs to be strong to withstand the pressure of food and liquid passing over it during swallowing, but also flexible to move out of the way to allow air to pass through the trachea. The type of tissue that gives the epiglottis this property is:
B) Elastic cartilage
The epiglottis is composed mainly of elastic cartilage, a type of cartilage that is rich in elastic fibers, which gives it the strength and flexibility needed to perform its functions effectively. Elastic cartilage is found in other parts of the body that require both strength and flexibility, such as the external ear and the larynx.
Click the below link, to learn more about Epiglottis:
https://brainly.com/question/13252472
#SPJ11
Stars evolve, or change, over time. It may take millions, or possibly billions, of years for a star to complete its life cycle. Stars spend most of their life, 90%, on the main sequence, illustrated in the Hertzsprung-Russell diagram. What color(s) are main sequence stars?
A mid-range or white mid-range or white
B all colors in the range all colors in the range
C cooler colors, yellow, orange, and red-cooler colors, yellow, orange, and red
D hot end, blue
Main sequence stars are usually at the hot end and are coloured blue. Thus, the correct answer from the given options is option D.
What are the other colours of stars?Red: cooler stars with surface temperatures between 2,500 and 3,500 KOrange: stars with surface temperatures between 3,500 and 4,000 KYellow: stars like our sun with surface temperatures around 5,500 KWhite: hotter stars with surface temperatures between 7,500 and 10,000 KBlue: very hot stars with surface temperatures above 10,000 KThe hottest and most massive stars are found at the blue end of the spectrum, while the coolest and least massive stars are found at the red end of the spectrum. Therefore, main sequence stars range in color from blue to red, but the majority of them are hot, blue stars.
Learn more about Main sequence stars here:
https://brainly.com/question/30369795
#SPJ1
A sixteen-year-old boy is admitted with hodgkin’s lymphoma. which assessment findings would you expect?1. Small, tender lymph nodes in the groin2. Enlarged, firm nontender nodes in the supraclavicular area.3. Enlarged, tender nodes all over the body4. Small, nontender, non moveable nodes in the cervical area
A sixteen-year-old boy admitted with Hodgkin’s lymphoma would have a variety of assessment findings. The most common and most easily identifiable signs of Hodgkin’s lymphoma are small, tender lymph nodes in the groin.
Additionally, the patient may have enlarged, firm, nontender nodes in the supraclavicular area, as well as enlarged, tender nodes all over the body. Other possible findings include small, nontender, non-moveable nodes in the cervical area.
These nodes may feel like a hard lump and may be accompanied by enlarged lymph nodes nearby. It is important for the health care provider to examine the patient for any of these signs, as they can be indicative of Hodgkin’s lymphoma.
Additionally, the provider should be aware of any other symptoms the patient may be experiencing, such as fever, night sweats, and fatigue. With prompt diagnosis and treatment, the prognosis for patients with Hodgkin’s lymphoma can be very good.
Know more about lymph nodes here
https://brainly.com/question/24285521#
#SPJ11
why is taxol and colchicine both toxic to dividing cells even though they have opposite actions
Taxol and colchicine are both toxic to dividing cells because they disrupt the normal process of cell division.
Taxol works by stabilizing microtubules, which are essential for the separation of chromosomes during cell division. This prevents the proper formation of the mitotic spindle, leading to cell death. On the other hand, colchicine works by inhibiting microtubule formation, which also disrupts the formation of the mitotic spindle and leads to cell death.
Despite having opposite actions, both Taxol and colchicine ultimately result in the disruption of cell division and are therefore toxic to dividing cells.
To know more about cell division:
https://brainly.com/question/29773280
#SPJ11
what area in the brain sets the respiratory rhythm? view available hint(s)for part a what area in the brain sets the respiratory rhythm? ventral respiratory group (vrg) dorsal respiratory group (drg) pontine respiratory group (prg) hypothalamus
Answer:
Explanation:
who ask
Fungi are necessary evil. Justify
Answer:
The statement "fungi are necessary evil" is not an accurate representation of the role of fungi in the natural world. Fungi play a crucial role in many ecosystems and are essential to the functioning of the biosphere.
Firstly, fungi are decomposers and are responsible for breaking down dead organic matter and recycling nutrients back into the ecosystem. Without fungi, dead plant and animal material would accumulate and ecosystems would become choked with debris, leading to a decline in biodiversity and productivity.
Secondly, fungi form important symbiotic relationships with other organisms, including plants. Many plants rely on mycorrhizal fungi to help them absorb water and nutrients from the soil, and some fungi can even help to protect plants from pathogens and predators.
Thirdly, fungi have important applications in medicine and industry. For example, the antibiotic penicillin is derived from a species of fungi, and other fungi are used to produce food and beverages such as bread, beer, and cheese.
Overall, the role of fungi in the natural world is far from being a necessary evil. Fungi are essential to the functioning of ecosystems, support the growth and survival of many other organisms, and have important applications in medicine and industry.
Fungi are living organism that feed on others and are very harmful if came with contact.
Fungi harm by
spoiling food, destroying timber, and infecting crops, livestock, and people with diseases. Many foods that have been stored spoil because of fungi, mostly molds like Penicillium and Aspergillus.The majority of plant diseases are brought on by fungi, which also result in significant economic losses.
Fungal diseases of plants, like potato blight caused by Phytophthora and the Great Irish Famine can occasionally cause widespread human suffering. In a similar vein, fungi are the primary factor in the financial loss of timber in buildings. Lastly, numerous human and animal diseases are brought on by fungi.
to know more about Fungi are necessary evil
https://brainly.com/question/16941962
what is the ratio of adp adp to atp atp transported by the adenine nucleotide translocase, how many adp adp are transported for each atp atp transported?
" The ratio of ADP to ATP transported by the adenine nucleotide translocase is 1:1.
The adenine nucleotide translocase, which is a protein located in the inner mitochondrial membrane, is responsible for exchanging ADP (adenosine diphosphate) and ATP (adenosine triphosphate) across the mitochondrial membrane.
This means that for every molecule of ATP transported out of the mitochondria, one molecule of ADP is transported into the mitochondria in exchange. This process helps to maintain the balance of ATP and ADP levels within the mitochondria, which is crucial for cellular energy production and metabolism.
Learn more about “ adenine nucleotide translocase “ visit here;
https://brainly.com/question/16279256
#SPJ4
Practice: Punnett Squares
Part 1: Label the following genotypes as heterozygous or homozygous. You can use abbreviations.
1. aa
home
2. BB home 3. cc_home
4. Dd heter
Part 2: Based on the following genotypes, determine the phenotype.
6. In humans, tongue rolling is dominant to not being able to roll the tongue.
TT=
Tt-
7. In humans, mid-finger hair is dominant to no mid-finger hair.
tt ===
5. Ee hitel
When two dominant alleles for a feature are present in an organism, the genotype is referred to as dominant homozygous. Using the example for eye color, the letter BB is used to represent this genotype.
Who has heterozygous genotypes?A gene's two distinct alleles in one location. An heterozygous genotype can have two separate alleles that are mutants (compound heterozygote) or one normal allele and one mutant allele.
The homozygous genotype is which?possessing two identical copies of the same gene—one inherited by the mother as well as one from the father—is referred to by this phrase. Either both genes of a homozygous genotype are normal and both genes share the same mutant (change).
To know more about alleles visit:
https://brainly.com/question/7602134
#SPJ1
in comparison with prokaryotic genomes, eukaryotic genomes have fewer repetitive sequences. have fewer regulatory sequences. have a lower proportion of protein-coding dna relative to the overall size. have fewer protein-coding genes. contain less dna.
In comparison with Prokaryotic genomes, Eukaryotic genomes have a lower proportion of protein-coding dna relative to the overall size.
C is the correct answer.
Many Eukaryotic genes are found in many copies, or gene families, as opposed to the majority of Prokaryotic genes, which are often only present once in the genome. To create RNAs or proteins needed in vast amounts, such as ribosomal RNAs or histones, several copies of a gene may occasionally be required.
One circular DNA molecule can hold the whole bacterial genome. Prokaryotes may have additional genes on separate, smaller, circular or linear DNA molecules called plasmids in addition to this one "chromosome."
The Watson-Crick Double Helix structural model is followed by eukaryotic genomes, which are linear. They are found in chromosomes, which are made up by nucleosomes, which are collections of DNA and proteins (Histone).
To know more about Prokaryotic genomes, Eukaryotic genomes visit:
https://brainly.com/question/30041100
#SPJ4
The complete question is:
In comparison with prokaryotic genomes, eukaryotic genomes:
A. have fewer repetitive sequences.
B. have fewer regulatory sequences.
C. have a lower proportion of protein-coding DNA relative to the overall size.
D. have fewer protein-coding genes.
E. contain less dna
True or False: DNA polymerase can only work to elongate DNA in the 5` --- 3` direction?
True. DNA can only be extended by DNA polymerase in the 5' to 3' direction. This is so that the 5' phosphate group and the phosphodiester bond can be formed, which is catalysed by DNA polymerase.
Why does DNA grow 5 to 3 times longer?Using a deoxyribonucleotide, DNA polymerase separates the two terminal phosphates from the nucleotide's 5' end and then uses the free energy to create a phosphodiester bond.
Why only one way of DNA polymerase action?DNA polymerase can only synthesise in one direction by extending the 3' end of the previous nucleotide chain because it needs a free 3' OH group to begin synthesis. As a result, DNA polymerase travels in a 3'–5' direction along the template strand.
To know more about polymerase visit:-
https://brainly.com/question/29377728
#SPJ1
During which stage of perception does selective perception occur?
Stimulation
Primacy
Mental Templates
Selective perception occurs during the Stimulation stage of perception.
To explain, the perception process consists of three stages: Stimulation, Organization, and Interpretation. During the Stimulation stage, our senses are exposed to various stimuli, and we selectively focus on certain aspects while ignoring others. This selective focus is influenced by our past experiences, beliefs, and expectations.
This is where selective perception comes into play, as we tend to perceive things in a way that conforms to our preconceptions or mental templates.
The Primacy effect also plays a role in selective perception, as it suggests that our initial impressions tend to shape our overall perception.
In summary, selective perception occurs during the Stimulation stage, when we are exposed to stimuli and choose to focus on certain aspects based on our past experiences, beliefs, and expectations.
To know more about mental templates click on below link:
https://brainly.com/question/30755123#
#SPJ11