Together, the nervous system and the endocrine system coordinate and execute communication throughout the body.
Action potentials, which are electrical signals that cells in the nervous system transmit, are used to coordinate and regulate bodily processes. It consists of the brain, spinal cord, and limber nerves. It takes effect swiftly, and its effects are transient.
On the other side, the endocrine system is a network of glands that create and secrete hormones into the blood. In order to control different physiological processes, hormones operate as chemical messengers that go throughout the body and interact with specific target cells. It has longer-lasting effects and operates more slowly.
Both systems cooperate to keep the body's internal environment in balance, or at homeostasis, and to plan how the body will react to both internal and external changes.
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Together, the nervous system and the endocrine system coordinate and execute communication throughout the body.
Action potentials, which are electrical signals sent by nerve cells, are used to coordinate and regulate bodily processes. It is made up of the brain, the spinal cord, and the limber nerves. Its effects are transient and take effect quickly.
The endocrine system, on the other hand, is a network of glands that produce and secrete hormones into the blood. Hormones act as chemical messengers that travel throughout the body and interact with specific target cells to control various physiological processes. It has a longer duration of action and operates more slowly. Both systems work together to maintain the body's internal environment in balance, or homeostasis, and to plan how the body will respond to internal and external changes.
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other component of our blood type is the Rh factor. Some people have Rh positive blood and
others have Rh negative blood. The Rh factor is determined by one gene with two alleles. The allele
Home work allele and "y" to represent the r
for Rh positive is dominant over the allele for Rh negative. Let's use "R" to represent the positive
negative allele.
IR
|v
118
Ir
Work this problem: A woman whose blood type is AB negative marries a man with blood type O
positive. The man's mother had blood that was A negative.
What is the genotype of the woman?
10 |^ TV
What is the genotype of the man?
TIR
What is the genotype of the man's mother?
Alrr
What types of children might this man and woman expect to have?
1or 11°r
Genotypes
Phenotypes
The genotype of the woman with AB negative blood is IAi.
The genotype of the man with O positive blood is ii.
The genotype of the man's mother with A negative blood is IAi.
This man and woman could expect to have children with blood types A, B, AB, or O, but all of them would be Rh negative as the negative allele is recessive. The genotypes of their children could be IAi, IBi, IAi/IBi (AB), or ii (O) and the phenotypes would be A negative, B negative, AB negative and O negative respectively.
What is a genotype?A genotype is the genetic makeup of an organism, or the specific combination of alleles that an organism carries for a particular gene or genes.
A genotype can also be defined as the genetic makeup of an individual, specifically the combination of alleles that an individual inherits from their parents for a particular gene or group of genes.
It describes the genetic instructions that determine the characteristics of an organism. It can be represented by letters, such as A, B, C, etc. to represent different versions of a gene and different genotype combinations are represented by different letter combinations (e.g. AA, Aa, aa).
Therefore, the correct answer is as given above
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Read the article and use the information to answer the question that follows.
Forensic DNA
How can DNA be used to help solve a crime?
Because a sample of a person's DNA can be compared to the evidence gathered from a crime scene, DNA can be used to solve a crime.
What is Person's DNA?A molecule found within an organism's cells stores the genetic information that controls its growth and function. DNA molecules allow for the transmission of this information from one generation to the next.
When compared to our DNA, no two humans are identical to each other in 99.9%. Similarly to this, there are very few genetic differences between different human groups.
DNA also referred to as deoxyribonucleic acid, is the genetic material that can be found in humans and almost all other organisms. Nuclear DNA is the most common type of DNA, and it is found in the cell nucleus. On the other hand, mitochondria also have a small amount of DNA in them.
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A scientist obtained a mass of 0. 0062 nanograms of DNA from a diploid human cell.
Calculate the mass of DNA the scientist should obtain from a haploid human cell.
Give your answer in pictograms.
(1 nanogram = 1000 pictograms)
the mass of DNA the scientist should obtain from a haploid human cell is about 3 picogram.
One pair of chromosomes is inherited from each parent, therefore a diploid human cell has two sets of chromosomes and two copies of each gene (2n). Given that haploid human cells only have one set of chromosomes and one copy of each gene (n).
We must divide the mass obtained from a diploid human cell by two in order to determine the mass of DNA that a researcher should be able to extract from a haploid human cell.
0.0062 ng / 2 = 0.0031 ng
Pictograms can be created by multiplying nanograms by 1000.
1000 × 0.0031 ng = 3.1 pictograms
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The scientist should be able to extract about 3 picograms of DNA from a haploid human cell.
Because each parent inherits one pair of chromosomes, a diploid human cell has two sets of chromosomes and two copies of each gene (2n). Because haploid human cells have only one set of chromosomes and one copy of each gene (n).
To determine the mass of DNA that a researcher should be able to extract from a haploid human cell, we must divide the mass obtained from a diploid human cell by two.
0.0062 ng / 2 = 0.0031 ng
Pictograms can be made by multiplying nanograms by 1000, resulting in 1000 0.0031 ng = 3.1 pictograms.
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Evaluate: The Great Grand Canyon CER Rubric
Has the Grand Canyon changed over long periods of geologic time?
Use the following terms in your evidence and reasoning for your
claim.
fossil
superposition
erosion
relative dating
radioactive dating
The canyon's oldest exposed rocks are 1,840 million years old. The canyon, on the other hand, is geologically new, having been carved during the previous 6 million years.
How have the Grand Canyon's rocks altered over the last million years?Under high heat and pressure, these rocks turned into the dark-colored "basement" rocks observed towards the canyon's bottom today, including 1.84 billion-year-old Elves Chasm gneiss, the canyon's oldest known.
Finally, the Colorado River began to cut its way downhill just 5-6 million years ago. The canyon widened as a result of further erosion by tributary streams. These natural processes are still at work, gradually deepening and broadening the Grand Canyon.
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What 3 animals eat both producers and consumers?
a flower is yellow and has long, dark lines running from the tip of a petal to the base, near the pistil attachment. what type of pollination might this plant use?
If a particular flower is yellow in color and has a long, dark lines which running from the tip of a petal to the base, near the pistil attachment, then the preferred mode of pollination for this plant should be animal-based called zoophily.
Zoophily, which is also known as zoogamy, is basically a form of pollination in which the pollen is basically transferred by animals, by either invertebrates or vertebrates, which is in most cases birds and bats, but also by other animals.
Animals and insects get attracted to flowers which are bright in color, have patterns and contain nectar. The given plant has a yellow color with black lines running in the petals. The flower will be able to attract insects like bees and butterflies which will help it in pollination.
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in terrestrial ecosystems, most energy flow passes through detritus. group of answer choices true false
True, in terrestrial ecosystems, most energy flow passes through detritus as it serves as a primary source of food for decomposers such as bacteria, fungi, and invertebrates which in turn releases nutrients and energy that can be used by other organisms in the ecosystem
Detritus is the dead organic matter such as fallen leaves, twigs, and dead animals that accumulates on the forest floor. It is broken down by decomposers, such as bacteria and fungi, into simpler compounds that can be used by plants as a source of energy and nutrients. This broken-down detritus is then consumed by herbivores, which are in turn consumed by carnivores. This process is called the detritus food web, and it is the primary way that energy and nutrients are cycled through terrestrial ecosystems.
It's worth noting that detritus is not the only energy source in terrestrial ecosystems. Photosynthesis is also a source of energy. However, the energy that flows through detritus is an important part of the ecosystem's energy budget.
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an aerobic bacterium that requires oxygen at a concentration less than that in the atmosphere is called a(n)
Answer:
bacteriostasis
Explanation:
hormones are classified into two categories based on their chemical composition, hormones and hormones.
Hormones are classified into two categories based on their chemical composition: steroid hormones and non-steroid hormones.
Steroid hormones are a class of hormones that are derived from cholesterol. These hormones include testosterone, estrogen, and progesterone and are produced by the gonads (testes and ovaries) and the adrenal glands. Steroid hormones are lipid-soluble, which means they can easily diffuse through cell membranes. They bind to intracellular receptors, which are found inside the cells, and then can travel into the nucleus of the cell to influence gene expression.
Non-steroid hormones are a class of hormones that are not derived from cholesterol. These hormones include thyroid hormones, insulin, and growth hormone and are produced by glands such as the thyroid gland, pancreas, and pituitary gland. Non-steroid hormones are water-soluble, which means they cannot diffuse through cell membranes. They bind to receptors on the cell membrane, which then activate intracellular signaling pathways that lead to physiological changes.
Overall, steroid hormones and non-steroid hormones have different chemical compositions and they activate different intracellular pathways to produce their effects, but both play a crucial role in maintaining the body's homeostasis.
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Hormones are classified into two categories based on their chemical composition: steroid hormones and non-steroid hormones. This statement is true.
Steroid hormones are derived from cholesterol and are lipid-soluble. They include hormones such as testosterone, estrogen, and progesterone. These hormones can easily diffuse through cell membranes and bind to intracellular receptors, which then activate specific genes in the cell.
Non-steroid hormones, also known as small molecule hormones, are not derived from cholesterol. They include hormones such as thyroid hormones, catecholamines, and insulin.
These hormones are water-soluble and cannot diffuse through cell membranes, so they bind to receptors on the cell surface. This leads to a cascade of intracellular events, resulting in the activation of specific genes in the cell.
Complete question:
Hormones are classified into two categories based on their chemical structure, hormones, and non-hormones. It's true or false.
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what is....
______ unicellular, prokaryotic, bacteria, blue-green algae, spirochetes
______ unicellular, prokaryotic, halophiles, thermophiles
______ unicellular/multicellular, eukaryotic, dinoflagellates, golden, brown and yellow-green algae, diatoms, amoeba
______ multicellular, eukaryotic, all plants
______ unicellular/multicellular, eukaryotic, molds, yeasts, mushrooms
______ multicellular, eukaryotic, all animals
Word bank:
alumalae
bacteria
planetaria
protista
plantae
archaea
somalia
animalia
fungi
What is bacteria unicellular, prokaryotic, bacteria, blue-green algae, spirochetes archaea unicellular, prokaryotic, halophiles, thermophiles
protista unicellular/multicellular, eukaryotic, dinoflagellates, golden, brown and yellow-green algae, diatoms, amoeba plantae multicellular, eukaryotic, all plants fungi unicellular/multicellular, eukaryotic, molds, yeasts, mushrooms animalia multicellular, eukaryotic, all animals.
What is bacteria?This refers to a large group of single-cell microorganisms. They can cause infections and diseases in animals and humans.
What is protista?
This refers to simple eukaryotic organisms that are neither plants nor animals or fungi. Protists are unicellular (one cell) in nature but can also be found as a colony of cells. Most protists can be found in water, damp terrestrial environments, or even as parasites.
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a community group need advice on choosing rock for a city monument that will last a long time. Explain the factors that would likely affect how long the monument would last
The composition of the rocks would determine the rock that would be chosen.
How would they know the what rock to choose?We need to know that one of the effects that would easily show on the rock would be the leaching of the acid rain on the minerals that compose the rock. We would in that case have to look for a rock that would contain the minerals that do not leach so easily.
Hence, the prime consideration as we are looking at the kind of rock that we would need to pick for the monument is the kind of materials that compose the rock.
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extreme rarity' can be described as: group of answer choices restricted range, narrow habitat tolerances, and small local populations restricted range, broad habitat tolerances, and large local populations extensive range, narrow habitat tolerances, and large local populations restricted range, broad habitat tolerances, and small local populations extensive range, broad habitat tolerances, and small local populations
The correct option is A; Restricted range, narrow habitat tolerances, and small local populations ,
Net reproductive rate (r) is computed as r = (births-deaths)/population size, or simply multiply by 100. Because the population is so much larger, many more people are added.
The second type. A Type II survivorship curve can be found in many bird species. Organisms die more or less evenly at each age interval in a Type II curve. Organisms with this type of survivorship curve may also have a small number of offspring and require a lot of parental care.
A habitat is the broad location in which an organism lives, whereas a niche is the set of physical and biological conditions in which a species lives, as well as the means by which the species obtains what it requires to survive and reproduce.
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Play Soccer, Eat Well achieve300 answers
Answer:
well I do
Explanation:
so Yass
Two key components of leading a healthy lifestyle are participating in football and eating well. A fantastic method to keep in shape and receive physical activity is to play football.
What are the various activities that will help in the fitness ?Running, jumping, and kicking frequently while playing this sport can assist to build stronger muscles and enhance cardiovascular health. It can also aid in improving your coordination and agility. A healthy lifestyle can only be achieved with proper nutrition.
Your body can acquire the nutrients it needs to stay healthy by eating a balanced diet with lots of fruits, vegetables, and lean proteins. Additionally, it can aid in lowering your chance of developing chronic illnesses like diabetes and heart disease.
Maintaining a healthy diet can also assist with reducing your weight can improve your health in general. Therefore, maintaining a healthy lifestyle requires both eating healthily and playing football.
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growing arctic ice sheets is an example of-
A) correlational effect
B) positive feedback
C) negative feedback
D) causal effect
What type of epithelial tissue, found in the intestines, absorbs nutrients?
-stratified cuboidal epithelium
-simple cuboidal cells
-simple columnar epithelium
-stratified columnar epithelium
-stratified squamous epithelium
Stratified columnar epithelium is epithelial tissue, found in the intestines, absorbs nutrients .
In general ,Simple columnar epithelium is the epithelium that is often specialized for absorption and it consists of apical cilia or microvilli. these epithelial cells also line your stomach and intestines. hence , lining of the stomach and intestines in the gastrointestinal tract are formed of simple columnar epithelial cells.
In intestines , Absorptive cells are most predominant epithelial cell present in the lining of lumen in the small intestine and colon. They mostly works in absorption of nutrients across the layers of plasma membrane and also export same nutrients across the basal plasma membrane.
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Stratified columnar epithelium is epithelial tissue, found in the intestines, absorbs nutrients .
Simple columnar epithelium is the epithelium that is often specialized for absorption and it consists of cilia or microvilli. These epithelial cells also line your stomach and intestines. Hence , lining of the stomach and intestines in the gastrointestinal tract are formed of simple columnar epithelial cells.
In intestines , Absorptive cells are the most predominant epithelial cell present in the lining of lumen in the small intestine and colon. They mostly work in absorption of nutrients across the layers of plasma membrane and also export the same nutrients across the basal plasma membrane.
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1. This term refers to the time it takes identical points on two waves to pass through the
same point.
a. Crest
b. Wavelength
c. Trough
d. Period
Answer: Period
Explanation:
This is the time it takes for two crests to pass a given point. Should be memorised + in geography not biology.
A scientist is studying rock formations. She notices some unusual rocks like those pictured here. What can she conclude about this area?
It was part of a slow underwater eruption.
It was formed at a subduction zone.
It is moving toward a mid-ocean ridge.
It is a very young piece of land.
A scientist is studying rock formations. She notices some unusual rocks like those pictured here therefore what she can conclude about this area is that It was part of a slow underwater eruption. which is therefore denoted as option A.
What is Slow underwater eruption?These are the characteristic of the rift zones where crustal plates are being formed by hydrothermal vents which are often associated with undersea volcanoes.
The vents are created and sustained by the heat of volcanic activity at tectonic plate boundaries, found throughout the earth and is therefore the reason why option A was chosen in this context.
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Explain an environmental benefit a town
might experience if it switches from a coal
fired power plant to a wind farm as its
primary source of energy.
One major environmental benefit a town might experience if it switches from a coal-fired power plant to a wind farm as its primary source of energy is a reduction in air pollution. Coal-fired power plants are a major source of air pollution, emitting harmful pollutants such as sulfur dioxide, nitrogen oxides, and particulate matter. These pollutants can cause respiratory problems, heart disease, and other health issues, particularly for vulnerable populations such as children, the elderly, and people with pre-existing health conditions.
On the other hand, wind farms do not produce any air pollution. They are a clean and renewable source of energy that generates electricity without the need for fossil fuels. This means that by switching to a wind farm, the town would be able to reduce its air pollution and improve the health of its residents.
Additionally, wind energy does not emit any greenhouse gases, which contribute to global warming. It also does not require water for cooling, reducing the strain on water resources. It also does not generate waste and does not need to be transported or stored, reducing the risk of oil spills or other accidents.
The separation of homologous chromosomes occurs in A. ANAPHASE 1 B. PROPHASE 1 C. ANAPHASE 2 D.PROPHASE 2 E.METAPHASE 1
The separation of homologous chromosomes occurs in Anaphase 1 and Anaphase 2. Here options A and C are the correct answer.
During the process of cell division, the chromosomes in a cell replicate, and then the cell divides into two daughter cells, each with a complete set of chromosomes. The process of cell division is divided into two main stages: meiosis and mitosis.
In mitosis, the chromosomes line up in the middle of the cell, and then the homologous chromosomes are pulled apart by the spindle fibers and each daughter cell receives one complete set of chromosomes. This process of separation of homologous chromosomes occurs in Anaphase 1.
In meiosis, the process is a bit different, the cell undergoes two rounds of cell division, Meiosis I, and Meiosis II. In Meiosis I, the homologous chromosomes separate and go to different daughter cells, this process of separation of homologous chromosomes occurs in Anaphase 1.
In Meiosis II, the sister chromatids separate and go to different daughter cells, this process of separation of sister chromatids occurs in Anaphase 2.
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The separation of homologous chromosomes occurs during Anaphase I.
It states that Anaphase I is the stage where homologous chromosomes separate and migrate towards opposite poles of the cell, it is the stage where the chromosomes are separated from one another and are pulled to opposite ends of the cell. This is also supported where it states that during Anaphase I, homologous chromosomes separate and migrate towards opposite poles.
It confirms that during anaphase 1, the chromosomes separate and move to opposite poles. So it's Anaphase 1 where the separation of homologous chromosomes occurs.
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suppose that a new river cuts through a land mass, separating populations of mice on either side. these mice then evolve into new species on the two sides of the land mass. this is an example of evolution by . group of answer choices continental drift. subduction. vicariance. ratites.
The correct option is C ; vicariance, Geographical isolation (vicariance) is the main reason for the evolution of either side mouse into new species.
Two populations of the same species are geographically separated by a barrier, they will eventually become genetically distinct from one another. Even when they are exposed to the same kinds of environmental selection forces and are living in the same region, two populations of the same species can yet become genetically distinct from one another.
A new river cuts through a land mass, separating populations of mice on either side. these mice then evolve into new species on the two sides of the land mass, the separation of a group of organisms by a geographic barrier, resulting in the differentiation of the original group into new varieties or species.
Hence, vicariance is a kind of evolution caused by geographical isolation.
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Find out how your local authority manages the solid waste generated in your neighborhood.
a) Are these measures adequate?
b) If not, what improvements would you suggest?
c) What could your family do to reduce the amount of solid waste generated during a day?
Answer:
No the measures taken by my local authority is not adequate. I would like to suggest an improvement of using new cleaning trucks and making better sewage cannal system throughout my town.
As a family we can produce less solid wastage and keep the recyclable and non recyclable wastes separately for safe decomposition.
Avery's team repeated Griffith's experiments because they wanted to
A. determine which molecule in the heat-killed bacteria was the transforming factor.
B. determine which gene in the heat-killed bacteria was was the transforming factor.
C. determine which process in the heat-killed bacteria was the transforming factor.
D. determine which enzyme in the heat-killed bacteria was the transforming factor.
Avery's team repeated Griffith's experiments because they wanted to A. determine which molecule in the heat-killed bacteria was the transforming factor.
What is the transforming factor of the Avery experiment?The transforming factor of the Avery experiment was a substance called deoxyribonucleic acid (DNA). instead of proteins and thus Avery showed that DNA is the genetic material transmitted across generations in all life forms.
Therefore, with this data, we can see that the transforming factor of the Avery experiment was DNA instead of proteins, which is a fundamental discovery to show how biomolecules are generated.
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1. SELECT ONE NATURAL HAZARD IN THE PICTURE AND SUGGEST WAYS ON HOW PEOPLE MUST BE PREPARED TO FACE THE HAZARD IN TERMS OF THE DIFFERENT PERSPECTIVES GIVEN BELOW
CHOSEN HAZARD: VOLCANIC ERUPTION
Pa help po pls... I really need help po. I'll mark brainliest po who answered po.
Example: Earthquake
Answer:
During a volcanic eruption people should make sure they are prepared within their home with supplies, but also should turn off any heating or cooling within the house. Make sure all windows and doors are closed and locked. Goggles can protect your eyes from the heat and ash, try not to breath in said ash, a mask could help along with long sleeve clothes. Make sure vehicles are off to prevent them from blowing up. Seek shelter and avoid low areas.
g in an in vitro polymerization reaction of f-actin from its g-actin subunits, there is a lag phase (rate-limiting stage). what happens during this lag phase? a: f-actin is nucleated b: f-actin reaches a steady state c: f-actin exchanges nucleotides d: f-actin hydrolyzes atp e: f-actin undergoes treadmilling
There is a lag phase in the in vitro polymerization of F-actin from its G-actin subunits. F-actin nucleates during this lag phase.
G-actin or globular actin is the globular and monomer form of actin that forms the actin filament. F-actin or fibrous actin is the fibrous actin and a linear polymer that forms the contractile apparatus and cytoskeleton apparatus of the muscle cells.
Actin nucleation is the first stage in the development of an actin filament. Polarized filaments, or F-actin, are created by the assembly of actin monomers, or G-actin. This filament will have a pointed end that grows more slowly and a barbed end that grows quickly. Therefore, at this stage, a complex of three actin monomers, or an actin nucleus, is formed, from which an actin filament extends. Therefore, the time needed by the actin for nucleation is the lag phase. Here, option a is the correct statement.
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How was community feedback important in developing the asteroid hypothesis?
"After Dr. Alvarez published his study demonstrating high iridium levels near the K-T barrier, the whole scientific world embraced the asteroid idea."
Why was the asteroid impact theory not immediately accepted by the scientific community?7. (Key Idea J) (Key Concept J) Identify the reasons behind the scientific community's sluggish acceptance of the asteroid impact theory. Geologists at the time thought that Earth changes gradually and without big disasters, therefore the asteroid idea as that of the cause of a K-T extinction event was not readily accepted.
What supporting data does the asteroid hypothesis have?There is a tonne of evidence that the asteroid impact scenario is correct. For instance, the fossil record demonstrates how quickly dinosaurs vanished. This is more in line with a catastrophic event like an asteroid strike as opposed to a slow-moving shift in the climate or an increase in volcanic activity.
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In a cross between two individuals that are heterozygous for tongue rolling, what is the phenotypic ratio?
Answer:
The phenotypic ratio of a cross between two heterozygotes is 9:3:3:1
Explanation:
where 9/16 of the individuals possess the dominant phenotype for both traits, 3/16 of the individuals possess the dominant phenotype for one trait, 3/16 of the individuals possess the dominant phenotype for the other trait, and 1/16 are recessive for for both traits.
what is the net charge of a glycine molecule in human blood at ph 7.4, given an amino group of glycine has a pka
The net charge of a glycine molecule in the human blood at pH = 7.4 is equal to zero (0).
Glycine is one of the amino acids which are present in our body and consists of a single hydrogen (H) atom as its side chain. It is the simplest amino acid.
At a pH lesser then 2 both the oxygen and the nitrogen will be protonated, so the charge on glycine will be +1. Above the pH 9, both oxygen and nitrogen will be deprotonated to give a net charge of -1 .
At pH value between 3 and 9 the oxygen on the molecule will be deprotonated but the nitrogen will still be protonated to give it a neutral charge or we can say the net charge is 0. Therefore, at pH = 7.4 the net charge on glycine will be zero.
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The net charge of a glycine particle in the human blood at pH = 7.4 is equivalent to nothing (0).
Glycine is one of the amino acids which are available in our body and comprises a solitary hydrogen (H) particle as its side chain. It is the most straightforward amino corrosive.
At a pH lesser than 2 both the oxygen and the nitrogen will be protonated, so the charge on glycine will be +1. Over pH 9, the two oxygen and nitrogen will be deprotonated to give a net charge of - 1.
At pH esteem somewhere in the range of 3 and 9 the oxygen on the particle will be deprotonated however the nitrogen will, in any case, be protonated to give it a nonpartisan charge or we can say the net charge is 0. In this manner, at pH = 7.4, the net charge on glycine will be zero.
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I need help with this question
The bones appear similar in structure while being different mammals because mammals lived in a similar environments.
What Is An Environment?Everything in our immediate surroundings, including both living and nonliving entities like soil, water, animals, and plants that adapt to their environment, is referred to as the environment. Nature's bounty contributes to supporting life on Earth.
The existence of life on Earth is significantly influenced by the environment. The French term "Environ," which means "surrounding," is where the word "environment" originates. An ecosystem is defined as all living and non-living objects found in an area. It is the basis of the biosphere, which governs the wellbeing of the entire planet.
The study of organisms and how they interact with one another and with their environment is the main focus of the life science fields of ecology and environmental science.
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If a trait is X-linked recessive, who would express the trait?
a) the same proportions for females and males
b) homozygous recessive females and hemizygous recessive males
c) homozygous dominant females and hemizygous recessive males
d) heterozygous dominant females and hemizygous dominant males
e) heterozygous recessive females and hemizygous dominant males
Answer:
Option A
Explanation:
X linked recessive traits are seen in females who have homologous recessive X chromosomes and in hemizygous males .Females have two X chromosomes , so in order to have show recessive phenotype both pair of alleles should be recessive. If only one recessive allele is present in female then it's effect would be masked by the dominant allele.In males there is only one X chromosome , so even if they have one recessive chromosome they will show the recessive phenotype. Some examples of X linked recessive traits are Hemophilia , colour blindness, etc3. What is the main difference between Darwin's theories and Lamarck's theories?
Darwin believed that all animals within a species had identical genotypes; Lamarck believed that all animals within a species had identical phenotypes.
Darwin believed that animals were born with beneficial mutations that assisted them in their environments; Lamarck believed that animals changed due to their environments.
Darwin believed that all animals within a species had identical phenotypes; Lamarck believed that all animals within a species had identical genotypes.
Darwin believed that animals changed due to their environments; Lamarck believed that animals were born with beneficial mutations that assisted them in their environments.
The main difference between Darwin's theories and Lamarck's theories is that
Darwin believed that all animals within a species had identical genotypes; Lamarck believed that all animals within a species had identical phenotypes.
The first option is correct.
What is a phenotype?The phenotype is described as the set of observable characteristics or traits of an organism.
In conclusion, Lamarck believed that evolution is driven primarily by non-randomly acquired, beneficial phenotypic changes.
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