The relationship between groupings of species and their evolutionary history are depicted through phylogeny.
Thus, The outcomes are shown as a phylogenetic tree, which offers a visual representation of relationships based on similar or dissimilar physical and genetic traits.
The type of data entered, the number of species, and the variety of evolutionary relationships interpreted are all factors in phylogenetic analysis.
A single node that stands in for a potential common ancestor is where rooted phylogenetic trees converge. There are other ways to create a rooted phylogenetic tree, but the most popular one uses an outgroup made up of a distant relative of every other species under study.
Thus, The relationship between groupings of species and their evolutionary history are depicted through phylogeny.
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What cytoskeletal elements support the flagellum, and what is its function?
Cytoskeletal filaments provide the basis for cell movement. For instance, cilia and (eukaryotic) flagella move as a result of microtubules sliding along each other. In fact, cross sections of these tail-like cellular extensions show organized arrays of microtubules.
The cytoskeleton of eukaryotic cells is made of filamentous proteins, and it provides mechanical support to the cell and its cytoplasmic constituents. All cytoskeletons consist of three major classes of elements that differ in size and in protein composition.
Microtubules are the largest type of filament, with a diameter of about 25 nanometers (nm), and they are composed of a protein called tubulin. Actin filaments are the smallest type, with a diameter of only about 6 nm, and they are made of a protein called actin. Intermediate filaments, as their name suggests, are mid-sized, with a diameter of about 10 nm. Unlike actin filaments and microtubules, intermediate filaments are constructed from a number of different subunit proteins.
The cytoskeleton is a structure that helps cells maintain their shape and internal organization, and it also provides mechanical support that enables cells to carry out essential functions like division and movement.
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The two most common igneous rocks are basalt and granite. Basalt is commonly found ________ and granite is found _______
The two most common igneous rocks are basalt and granite. Basalt is commonly found ocean land and granite is found continental land .
The thickness of oceanic land is 5 Km and continental land is 30 km. The continental land is made up of granite and ocean land is made of lava rock called basalt. The crust is thinnest layer of the earth. What is the oceanic crust?The outermost layer of the oceanic portion of the divergent plate boundaries.It is made of different types of basalt.It is thin and dense.What is continental crust?The thick part of the earth crust which acquires large masses on the land.It is also the layer of igneous, sedimentary and metamorphic rocks.Its thickness is about 25 to 70 kmlearn about earth
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Epigenome-wide association study of DNA methylation in narcolepsy: an integrated genetic and epigenetic approach
Epigenetics is the branch of genetics that deals with the altered genetic expression of the genes without any change in the DNA sequence.
Our body’s normal sleep-wake cycle is regulated by our brain but due to a chronic nervous disorder in the brain, this regulation is disrupted causing the disease Narcolepsy. Research is underway to evaluate the exact reason behind the onset of this disease but as per the researchers, this disease is governed by two branches viz, genetics and epigenetics.
DNA methylation and DNA acetylation are two important concepts under epigenetics which can lead to either switching off or on certain particular genes.
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The discarded theory of blending inheritance most closely resembles what inheritance
The discarded theory of blending inheritance most closely resembles incomplete dominance.
What is blending inheritance?An antiquated biological notion from the 19th century is the concept of blending inheritance. According to the hypothesis, children inherit any trait by averaging the values of their parents for that trait.According to the theory of blended inheritance, an offspring combines the values of both parents for a given attribute. As opposed to blended inheritance, particulate inheritance states that a child inherits individual units or genes from each parent. Offspring thus combines the traits of both parents.Incomplete dominance is the term used to describe phenotypic "blending" of two features, which implies that neither trait is truly dominant over the other.The manifestation of phenotypic traits that are intermediate between those of the parents, such as pink flower color from red and white parents. Inheritance was a now-discredited hypothesis that claimed children's genetic make-up was a pure admixture of their parents'.Learn more about inheritance here:
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Due to having partly filled d-orbitals ___ metals usually show variable valency.
Answer:
Due to having partly filled d-orbitals transition metals usually show variable valency.
Explanation:
Between the (n-1)d and ns subshells, there is relatively little energy difference. (n-1)d and ns electrons can be found in transition metals.
Transition metals can instantly obtain half-filled and completely filled stable structures after losing a few s and d electrons.
They could have several of these oxidation states.
Since the creation of chemical bonds involves both (n-1) d and ns.
What are transition metals?Transitional elements are those belonging to groupings 3 through 12. (or III B to VIII). The term "Transition Metals" refers to a group of 38 elements. Contrary to the majority of Alkali Metals, Alkaline Earth Metals, Non-Metals, Halogens, Metalloids, Lanthanides, and Actinides, Transition Metals are colored both in their compounds and in their pure state. This is due to the crystal structure of the compounds created by the transition metals, which allows them to absorb a certain frequency (color) of visible light and produce a complementary color in return (frequency). Keep in mind that on the color wheel, the complementary color is the one that is opposite to the absorbed color.
Let's say we use crystals of ammonium dichromate (NH4)2Cr2O7 (there is a Chromium atom in one molecule of the compound). Because the molecules in the complex absorb blue light and reflect the complementary color, it appears orange to us (in this case, Orange). Because organic substances absorb light from beyond the visible light spectrum and then simultaneously reflect all of the visible light, we see them as being white or colorless.
The Transition elements are:
ScandiumTitaniumVanadiumChromiumManganeseIronCobaltNickelCopperZincYttriumZirconiumNiobiumMolybdenumTechnetiumRutheniumRhodiumPalladiumSilverCadmiumHafniumTantalumTungestnRheniumOsmiumIridiumPlatinumGoldMercuryRutherfordiumDubniumSeaborgiumBohriumHassiumMeitneriumDarmstadtiumRoentgeniumCoperniciumThat’s it.
In ____________ , a double-stranded RNA molecule separates into single strands. One of the strands prevents a complementary mRNA from being translated.
What is moving a limb away from the median plane of the body along the frontal plane called?
The moving of a limb away from the median plane of the body along the frontal plane called Abduction.
For example- swinging ones hands from each side of the body up to the shoulder or higher is abduction. In an anatomical sense is classified as the motion of a limb or appendage away from the midline of the body.
There is also an arm abduction it is the movement of the arms away from body within the plane of the torso (sagittal plane).
It is so because an abduction spreads the digits away from the hand or foot centerline of both.
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The term ____________________ describes any degenerative or inflammatory condition of the kidney.
The term Nephritis describes any degenerative or inflammatory condition of the kidney.
A disorder when the kidney's tissues swell up and have trouble removing waste from the circulation. Infections, inflammatory problems (like lupus), specific genetic conditions, and other illnesses or conditions can all contribute to nephritis.When deposits of the antibody build up in the glomeruli, IgA nephropathy develops. It could take a while before the inflammation and related damage are seen. Urine that contains blood is the most typical sign.Infections, inflammatory problems (like lupus), specific genetic conditions, and other illnesses or conditions can all contribute to nephritis. It might also be brought on by using specific medications or coming into contact with specific substances.learn more about nephritis here: https://brainly.com/question/608378
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If a researcher has a DNA sample with a concentration of 0.2 micrograms per microliter, how many microliters of DNA must be transfered to conduct a 50 microliter reaction if the final concentration should be 2.3 nanograms per microliter
The amount, in microliters, of the DNA that must be transferred to conduct the reaction will be 0.575 microliters
Dilution principleThe problem can be solved by using the dilution equation.
Mathematically, the equation is given as:
m1v1 = m2v2
Where m1 = imitial concentration, m2 = final concentration, v1 = initial volume, and v2 = final volume.
However, the initial and final concentrations, in this case, should first be converted to the same units.
0.2 microgram = 0.2 x [tex]10^{-6}[/tex] grams
2.3 nanograms = 2.3 x [tex]10^{-9}[/tex] grams
Thus, 2.3 nanograms = 2.3 x [tex]10^{-3}[/tex] microgram = 0.0023 microgram
What we are looking for is the initial volume.
v1 = m2v2/m1 = 0.0023 x 50/0.2 = 0.575 microliters
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If the receptor on the postsynaptic membrane binds to norepinephrine, the synapse is called:__________
According to the research, if the receptor on the postsynaptic membrane binds to norepinephrine, the synapse is called adrenergic.
What is the adrenergic synapse?It is the molecular complex that selectively receives the signal of adrenaline and noradrenaline in the body's cells.
It is involved in various functions of the sympathetic nervous system, which involves fight and flight responses.
Therefore, we can conclude that according to the research, if the receptor on the postsynaptic membrane binds to norepinephrine, the synapse is called adrenergic.
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Miller is giving a lecture on the theories of aging. She explains that genetics, diet, lifestyle, activity, and exposure to pollutants all play a role in the aging process, and suggests that overall processing speed declines in the peripheral nervous system affecting your brain's ability to communicate with your muscles and organs. Dr Miller is trying to explain the ________.
According to the theories of aging, Dr Miller is trying to explain the peripheral slowing hypothesis.
What is the peripheral slowing hypothesis?It states that people age because their nervous system's processing accumulates damage from the wear and tear of everyday life, and erodes the normal biochemical activities that occur in cells, tissues, and organs.
The nerves of the brain wear out naturally, directly affecting the mitochondria that provide energy for all cellular activities.
Therefore, we can conclude that Dr Miller is trying to explain the peripheral slowing hypothesis suggests that overall processing speed declines in the peripheral nervous system.
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The triceps brachii muscle attaches to the olecranon process of the ulna crossing the posterior side of the elbow joint. that will allow the triceps to be a(n) __________ of the elbow joint.
The triceps brachii muscle attaches to the olecranon process of the ulna crossing the posterior side of the elbow joint. that will allow the triceps to be an Extensor of the elbow joint.
Directly affected is the common extensor tendon, which arises from the lateral epicondyle of the elbow. The common extensor tendon is made up of the extensor carpi radialis brevis (ECRB) and longus, extensor digitorum, extensor digiti minimi, and extensor carpi ulnaris.The main elbow flexors are the biceps brachii, brachialis, and brachioradialis. The main elbow extensor is the triceps brachii. Although it is also believed that the anconeus contributes to elbow extension.The proximal articular region of the ulna is called the olecranon. It creates the larger sigmoid notch, which articulates with the humerus to allow for elbow flexion and extension, together with the coronoid process.The main point of attachment for the forearm's extensor muscles is the common extensor tendon. This promotes forearm supination and allows finger extension.learn more about Olecranon process: https://brainly.com/question/5986282
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Blood is supplied to the muscular wall of the left atrium by the
Blood is supplied to the muscular wall of the left atrium by the left coronary artery
Blood is considered a connective tissue that remains flowing continuously in the body and carries oxygen, nutrients, and hormones from one place to another place in the body.
It is pumped into the body equally through the heart which consists of four chambers and several valves and arteries which work in a coordinated manner to collect deoxygenated blood collected from the body and replace oxygen in it and pump it into the other parts of the body.
The left coronary artery (LCA), also known as the left main coronary artery (LMCA) arises from the aorta above the left cusp of the aortic valve and transports the blood to the left side of the heart muscle.
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Force in the liquid are the forces of attraction between the molecules within the liquid.
Select the correct answer from each drop-down menu.
The United Nations promotes
x in an effort to maintain world peace and protect future generations. The tOxic
impact of nuclear weapons lasts long after its use. Nuclear bombs release
v that poisons the environment and
endangers lives. Modern nuclear weapons are so powerful that they have the capacity to wipe out large cities in minutes and perhaps
cause the end of human civilization.
Answer:
The United Nations promotes "nuclear arms control" in an effort to maintain world peace and protect future generations. The toxic impact of nuclear weapons lasts long after its use. Nuclear bombs release "radioactive material" that poisons the environment and endangers lives. Modern nuclear weapons are so powerful that they have the capacity to wipe out large cities in minutes and perhaps cause the end of human civilization.
Explanation: edmentum
Answer:The United Nations promotes "nuclear arms control" in an effort to maintain world peace and protect future generations. The toxic impact of nuclear weapons lasts long after its use. Nuclear bombs release "radioactive material" that poisons the environment and endangers lives. Modern nuclear weapons are so powerful that they have the capacity to wipe out large cities in minutes and perhaps cause the end of human civilization.
Explanation:
The purpose for the delay in the conduction of the action potential from the AV node to the bundle branches of the ventricles is to allow ______, before the ventricles contract.
The purpose of the delay in the conduction of the action potential is to allow the atria to complete their contraction, before the ventricles contract.
What are the atria?The atria are two different heart sections/chambers located at the upper region of the heart.
The atria play a fundamental role during the during heart cycle, i.e. they act as blood reservoirs in the systole.
In conclusion, the purpose of the delay in the conduction of the action potential is to allow the atria to complete their contraction.
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Children's steady growth, brain maturation, and intellectual advances make middle childhood a time for more _____.
Children's steady growth, brain maturation and intellectual advances help in making the middle childhood a time for more independence.
The middle childhood ranges from six to twelve years of age and is a very important phase for the growth and development of a child. It is in this stage of life that a child gains social, cognitive, emotional and physical advancements.
The middle childhood basically lays the foundation for adulthood. The brain maturation in this phase involves the growth of certain structures like the frontal lobe which enhances learning and decision making. Steady growth and all the intellectual advancements aid in generating a sense of autonomy and independence in children. This helps in refining the child's capabilities.
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A bypass or shunt operation that diverts the cerebrospinal fluid is treatment for:.
Hydrocephalus
What is hydrocephalus?An excessive buildup of cerebrospinal fluid (CSF), the clear fluid that surrounds the brain and spinal cord, is the main symptom of the illness known as hydrocephalus. The ventricles in the brain, which are empty areas, enlarge abnormally as a result of this excessive accumulation. Pressure on the brain's tissues as a result of this dilatation could be detrimental. Both congenital and acquired hydrocephalus are possible.
How is hydrocephalus treated?The surgical installation of a shunt device is the most common treatment for hydrocephalus. With the help of this system, CSF (cerebrospinal fluid) is switched from one location in the central nervous system to another one where it can be absorbed as part of the circulatory system. A different method known as third ventriculostomy can be used to treat a small number of patients. The third ventricle's floor is punctured during this surgery to allow the CSF to pass through the blockage and move toward the area of resorption near the brain's surface.
I understand the question you are looking for is this:
A bypass or shunt operation that diverts the cerebrospinal fluid is treatment for
a. meningitis.
b. hydrocephalus.
c. encephalitis.
d. cerebral palsy.
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Starting with one molecule of glucose, the energy-containing products of glycolysis are?
Starting with one molecule of glucose, the energy-containing products of glycolysis are 2 NADH, 2 pyruvate, and 2 ATP.
A cytoplasmic mechanism called glycolysis converts glucose into two molecules with three carbons each and releases energy. Hexokinase, a phosphorylating enzyme, assists in the phosphorylation process that traps glucose. This reaction uses adenosine triphosphate (ATP), and the end result, glucose-6-P, inhibits hexokinase.As the name implies, glycolysis is the conversion of glucose to pyruvate. Two molecules of pyruvate are created for each molecule of glucose that enters glycolysis because pyruvate is a three-carbon molecule and glucose is a six-carbon molecule. Without oxygen, glycolysis takes place in the cytoplasm of the cell. Two ATP are produced per gram of glucose as net energy.learn more about glycolysis here: https://brainly.com/question/1966268
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Punnett squares are used to show possible combinations of alleles or to predict the probability of a trait occurring in offspring. a parakeet that is heterozygous for blue feathers (dominant) is crossed with a parakeet that is homozygous for white feathers (recessive). a parakeet with white feathers. a parakeet with blue feathers. according to the punnett square for this cross, what percentage of offspring is predicted to have blue feathers?
50% of offspring have blue feathers.
How to make Punnett squares?Let's say the allele for blue feathers, which is dominant, is represented by "B" and that for white feathers, which is recessive, is represented by "b".
One parakeet has heterozygous alleles for blue feathers. Therefore its pair of genes will be represented as - Bb
Another parakeet is homozygous recessive for white feathers. Therefore its pair of genes will be represented as - bb
Gametes formed from Bb will be B and b
Gametes formed from bb will be b and b
Now the cross is made which is here shown by the Punnett square:
B b
b Bb bb
b Bb bb
Bb = blue feathers
bb = white feathers
The phenotypic ratio is = 1 : 1 (blue feathers : white feathers)
The genotypic ratio is = 1 : 1 (Bb : bb)
Therefore, 50% of the offspring have blue feathers and 50% have white feathers.
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witch best illustrates a result of natural selection?
A result of natural selection is D) giraffes having increasingly more extended necks over time. Natural selection is an evolutionary mechanism that was offered by Darwin.
According to this mechanism, organisms that are better skilled of adapting to their changing environmental conditions, survive and grow their number through reproduction whereas other are stopped from the population.
Who discovered natural selection?
The theory of natural selection was studied by 19th-century naturalist Charles Darwin. Natural selection describes how genetic traits of a species may change over time.
What is natural selection and example?Natural selection is the process in nature by which organisms better adapted to their environment manage to persist and reproduce more than those less adapted to their environment. For example, treefrogs are sometimes consumed by snakes and birds.
correct question shown below,
Which best illustrates a result of natural selection?
A) a bat that is born with a wing that is missing the web
B) dark-colored hares living in a snowy area
C) mosquitoes that transmit disease to humans
D) giraffes having increasingly longer necks over time
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Soha, kesha, and lance work together in the same office and also live in the same apartment building. they travel to their workplace using different modes of transport. arrange their transport choices according to their carbon footprint. begin with the person with the smallest footprint.
Arrangement of transport choices if begin with the person with the smallest carbon footprint is Lance < Kesha < Soha .
The entire amount of greenhouse gases (such as carbon dioxide and methane) produced by human actions is known as a carbon footprint.
Let's first take the example of Lance who rides a bicycle to their workplace.
The amount of carbon emission in riding a bicycle is comparatively very low in comparison to the hybrid electric car and gasoline-powered sedan as the bicycle doesn't emit any fumes.
Cycling emits 84 percent less CO2 on average than driving a car or using public transportation.
So, Lance is the person with the smallest carbon footprint.
Now if we compare Kesha with hybrid electric car and Soha with gasoline-powered Sedan, Kesha will have smaller carbon footprint.
In general, compared to conventional vehicles like gasoline-powered sedan, all-electric, plug-in hybrid electric, and hybrid electric vehicles (HEVs) have reduced exhaust emissions like carbon-di-oxide.
So, the correct arrangement of transport choices if begin with the person with the smallest carbon footprint is Lance < Kesha < Soha.
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What is magmatic differentiation? how might this process lead to the formation of several different igneous rocks from a single magma?
Magnetic differentiation is the process by which a single homogeneous magma is able to produce two or more than two of different composition,which ultimately forms diverse rock types.
That process would have to be one that causes magma composition to change.magnetic diffraction can occur by the chemical reaction between the magma and the first crystals to solidify from it.
Igneous rock form when magma cools and crystalline on the surface of the earth or inside the earth crust. Inside the crust all the magma is develops underground in the lower crust or upper mantle. Magma undergo bulk chemical change during the partial melting process, cooling emplacement , or eruption.
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Which structure is highlighted?
a. anterior cavity
b. pupil
c. posterior cavity
d. iris lens
Option (c) Posterior cavity is the highlighted structure.
The area behind the lens that extends to the retina's location on the back side of the internal eyeball is known as the posterior cavity. The vitreous humor, a more viscous fluid, fills the posterior cavity.
The posterior chamber is a crucial component in the creation and movement of aqueous humor.
The posterior chamber receives the aqueous humor secreted by the ciliary body's epithelium, which then flows through the pupil and into the anterior chamber.
The anterior hyaloid membrane and all of the optical components behind it, including the vitreous humor, retina, choroid, and optic nerve, are located in the posterior segment, also known as the posterior cavity, which makes up the back two-thirds of the eye.
Hence, Posterior cavity is the highlighted structure.
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What is an Electrocardiogram used for?
A. To create mechanical replacement hearts.
B. To diagnose problems with the body’s electrical current capacity.
C. To write computer programs that mimic the activity of the heart.
D. To diagnose problems with the heart.
Answer:
To diagnose problems with the heart
Answer: The answer is to diagnose problems with the heart.
Explanation: An electrocardiogram is a display of a person's heart electrical activity. It is used to detect heart problems.
What part of the cell modifies,
sorts, and repackages proteins?
A. Golgi body
B. mitochondria
C. ER
Answer:
A: Golgi body
Explanation:
During the process of learning, the brain shows a characteristic called _____, which is the ability to change in response to intensive usage for a particular task like memorizing a page of physiology notes.
During the process of learning, the brain shows a characteristic called Plasticity.
What is plasticity?The ability of the brain to reconfigure its structure and function biologically, chemically, and physically is referred to as brain plasticity, also known as neuroplasticity. Neuroplasticity can develop as a result of brain damage or as a result of learning, experience, and memory formation.
New neural pathways become stronger with learning and new experiences, whereas less-used neural pathways weaken and eventually die. Synaptic pruning is the name of this procedure.
Recent studies suggest that mature brains continue to display plasticity as a function of learning, despite being usually linked with changes in childhood. Neuroplasticity has protective effects on trauma management during human development. Learning a second language or a musical instrument can also boost neuroplasticity.
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The presence of five digits is a plesiomorphic characteristic and is, therefore?
The presence of five digits is a plesiomorphic characteristic and is, therefore option A. a primitive mammalian pattern retained to some degree in most primates.
What is true about the presence of five digits on hands and feet?The occurrence of the five digits on both the hands and feet i known to be a kind of a primitive mammalian trait, and it is one that can also be seen in majority of primates.
Note that a lot of animals around in the world today are known to only have five digits (in the fingers or toes). The act of having five fingers in in a lot of cases is seen mostly as a recessive trait.
Therefore, The presence of five digits is a plesiomorphic characteristic and is, therefore option A. a primitive mammalian pattern retained to some degree in most primates is correct.
See full question below
The presence of five digits is a plesiomorphic characteristic and is, therefore:
Group of answer choices
A. a primitive mammalian pattern retained to some degree in most primates
B .the only truly distinctive primate trait
C. characteristic only of apes and humans
D. characteristic only of primates
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At the end of the pre-cook and finish cook times, bone-in wings should be drained for:____________.
At the end of the pre-cook and finish cook times, bone-in wings should be drained for:____________.
15 seconds.
This time period is allowed so that the liquid in the bones in the chicken would be removed so the bone-in wings would be more tender.
What is Chicken?This refers to the type of meat that is considered a healthy source of protein and is referred to as "white meat" and is made from the body of a fowl or hen.
Hence, we can see that the time period that is allowed at the end of the pre-cook and finish cook times for the bone-in wings is 15 seconds.
This is done in order to let the chicken wings to become more tender as the liquid is drained away from it.
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If the heterozygous phenotype is intermediate between that of the homozygotes this is called:____.
A. epistasis.
B. incomplete dominance.
C. independent assortment.
D. polygenic.
E. codominance.
If the heterozygous phenotype is intermediate between that of the homozygotes this is called independent dominance. The correct answer is B. incomplete dominance.
Incomplete dominance refers to the phenomenon in which two true-breeding parents interbred to create an intermediate child (sometimes referred to as heterozygous). Alternate names for it include partial dominance and intermediate inheritance. In the case of partial dominance, the variations (alleles) are expressed in a reduced ratio rather than as dominant or recessive.
A new heterozygous phenotype is produced by imperfect dominance, often known as the dilution of the dominant allele relative to the recessive allele. For instance
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