Answer:
C. captive breeding programs
Explanation:
Captive breeding programs aim to breed more of an animal that may have been struggling to survive, they may even be beneficial to biodiversity.
What is the example of biological hazards contamination?
assume that the global amount of radiocarbon is constant, and that decaying carbon-14 is continuously replaced in organisms when they are alive. however, once an organism dies, the amount of carbon-14 in it decreases continuously as it decays to nitrogen-14. a. the carbon in a buried peat bed has about 6% of the carbon-14 of modern shells. what is the age of the peat bed? explain.
The peat bed is approximately 4,429 years old.
The age of the peat bed can be calculated using the following formula:
Age = t * ln(R_0/R)
Where:
t is the half-life of carbon-14, which is approximately 5,730 years.R_0 is the initial ratio of carbon-14 to carbon-12 in the sample, which is approximately 0.01 in modern shells.R is the current ratio of carbon-14 to carbon-12 in the sample, which is approximately 0.006 in the peat bed (6% of the carbon-14 of modern shells).Plugging these values into the formula gives us:
Age = 5,730 years * ln(0.01/0.006)
Age = 5,730 years * 0.778
Age = 4,429 years
This method of dating, known as radiocarbon dating, is based on the fact that carbon-14 is continuously replaced in living organisms, but once an organism dies, the amount of carbon-14 in it decreases continuously as it decays to nitrogen-14. By measuring the ratio of carbon-14 to carbon-12 in a sample, it is possible to determine how long it has been since the organism died, assuming that the global amount of radiocarbon is constant.
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What separated during meiosis 2?
Answer:
sister chromatids
Explanation:
Could there be a frameshift mutation that would not affect the structure and function of the resulting protein?.
It is possible the emergence of a frameshift mutation that does not affect the structure of a protein, but it will invariably modify its structure.
Happy Holidays!!
Answer:fqwfee
Explanation:fqqfewfqrqf
how does cellular respriation impact the observed rate of photosynthesis? is your calculated rate of photosynthesis accurate? why or why not?
Cellular respiration, by producing CO2, reduces the observed rate of photosynthesis. As a result, the observed rate of photosynthesis is less than the actual rate.
The rate at which carbon is absorbed into carbohydrate in the light-independent process increases as the carbon dioxide concentration rises, and hence the rate of photosynthesis normally rises until it is restricted by another factor.
Photosynthesis is the process by which carbon dioxide and water are converted into oxygen and glucose. The plant consumes glucose as food and produces oxygen as a byproduct. Cellular respiration is the process through which oxygen and glucose are converted into water and carbon dioxide. Water and carbon dioxide are byproducts of the process, while ATP is the energy that is produced.
A low CO2 concentration has two effects: it reduces photosynthesis and lowers the light saturation threshold. (The light saturation point is the point at which further increases in light do not improve photosynthesis.)
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PEA PLANT PUNNETT SQUARE WORKSHEET 1) Yellow seeds are dominant over green seeds in pea plants. Fill in the Punnett square and determine the expected genotypic and phenotypic ratios from crossing homozygous recessive and homozygous dominant parents. Y Y y Yy Yy y Yy Yy Genotypes: __________________________ Genotypic Ratio: _________ Phenotypes: _________________________ Phenotypic Ratio: _________ 2) Green pod color is dominant over yellow pod color in pea plants. Fill in the Punnett square and determine the expected genotypic and phenotypic ratios from crossing homozygous dominant and heterozygous parents. Genotypes: __________________________ Genotypic Ratio: _________ Phenotypes: __________________________ Phenotypic Ratio: ________ 3) Round seeds are dominant over wrinkled seeds in pea plants. Fill in the Punnett square and determine the expected genotypic and phenotypic ratios from crossing homozygous recessive and heterozygous parents. Genotypes: __________________________ Genotypic Ratio: _________ Phenotypes: _________________________ Phenotypic Ratio: _________ 4) Smooth pod shape is dominant over constricted pod shape in pea plants. Fill in the Punnett square and determine the expected genotypic and phenotypic ratios from crossing homozygous recessive and homozygous dominant parents. Genotypes: __________________________ Genotypic Ratio: _________ Phenotypes: _________________________ Phenotypic Ratio: _________ 5) Tall pea plants are dominant over short pea plants. Fill in the Punnett square and determine the expected genotypic and phenotypic ratios from crossing heterozygous and heterozygous dominant parents. Genotypes: __________________________ Genotypic Ratio: _________ Phenotypes: _________________________ Phenotypic Ratio: _________ 6) The axial flower position is dominant over the terminal flower position. Fill in the Punnett square and determine the expected genotypic and phenotypic ratios from crossing heterozygous and homozygous dominant parents. Genotypes: __________________________ Genotypic Ratio: _________ Phenotypes: _________________________ Phenotypic Ratio: _________ 7) Gray seed coat color is dominant over white seed coat color. Fill in the Punnett square and determine the expected genotypic and phenotypic ratios from crossing homozygous dominant and homozygous dominant parents. Genotypes: __________________________ Genotypic Ratio: _________ Phenotypes: _________________________ Phenotypic Ratio: _________ 8) Tall pea plants are dominant over short pea plants. Fill in the Punnett square and determine the expected genotypic and phenotypic ratios from crossing homozygous recessive and homozygous recessive parents. Genotypes: __________________________ Genotypic Ratio: _________ Phenotypes: _________________________ Phenotypic Ratio: _________
Phenotypic ratios 1)1:0 yellow : green 2) 1:0 green : yellow 3) 1:1 4) 1:0 smooth constricted 5) 3:1 tall : short 6) 1:0 Axial : terminal 7) 1:0 grey : white 8)0:1 tall : short
Phenotypic ratios are quantitative relationships between phenotypes that illustrate how frequently one phenotype is correlated with another. Researchers utilise the phenotypic ratio derived from a test cross to determine the gene expression for generations of an organism. The ratio of various phenotypes that are present in the progeny of a cross is known as the phenotypic ratio. Ratios are comparisons in numbers. The ratio of apples to oranges, for instance, would be 3:2 if someone possessed three apples and two oranges. It is projected that a cross between two heterozygous F1 hybrids will result in offspring with a 1:2:1 ratio of genotypes to phenotypes for that trait.
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Q-11. Following are the main dangers for the biodiversity?
a) Deforestation
c) Agriculture
b) Pollution
d) All of above
Answer:
A
Explanation:
B/c deforestation is the main cause of pollution
Absolute strength gains are typically greatest in
You may do each set with the maximum amount of muscular force feasible when you have a full recovery, which results in the most absolute strength gains.
Another benefit of this rest period is that it seems to boost testosterone levels in seasoned strength athletes who use exercises that target vast muscle groups into their training when combined with heavy training loads. Greater strength gains are correlated with higher testosterone levels.
The complete weight that your body is capable of lifting is your absolute strength. People often equate this with strength. The ability to exert the most power in relation to your bodyweight is referred to as relative strength.
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Researchers determined the average amount of time that a particular type of eukaryotic cell spends in each phase of the cell cycle. The data collected by the researchers are represented in Figure 1.
Based on Figure 1, what percent of the time required to complete a full cycle do the cells typically spend in interphase?
The percent of the time required to complete a full cycle do the cells typically spend in interphase is 95%.
Human cells in culture, which divide every 24 hours, represent a normal eukaryotic cell cycle. The cell cycle is separated into two main stages, as seen via a microscope: mitosis and interphase.
Mitosis (nuclear division) is the most dramatic step of the cell cycle, related to chromosomal separation and typically concluding with cell division (cytokinesis).
However, because mitosis and cytokinesis only last about an hour, 95% of the cell cycle is spent in interphase—the interval between mitoses. During interphase, the chromosomes are decondensed and disseminated throughout the nucleus, giving the nucleus a homogeneous appearance.
Interphase, on the other hand, is the moment when cell growth and DNA replication proceed in an orderly manner in preparation for cell division.
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Egg and sperm cells are (blank)
and contain a (blank)
number of chromosomes.
possible answers :
-sex cells, diploid
-gametes, haploid
-body cells, diploid
Answer:
sex cells, diploid
Please help I will give brainliest
Answer:
its correct option is A)Nucleus
Explanation:
Both euglena (a plant like protists) and cyanobacteria (a bacteria) are photosynthetic unicellular organisms found in pond water. The feature that distinguishes euglena from cyanobacteria is the.
Nuclear membranes are a characteristic of euglena that set it apart from cyanobacteria.
An organism with only one cell is said to be unicellular. Typically, cells contain organelles that help the organisms carry out their functions.
A freshwater unicellular (single-celled) organism called Euglena sp. either gets its energy from the sun through photosynthesis or from chemicals in its environment. Blue-green algae, sometimes referred to as cyanobacteria, are microorganisms that produce their own energy through photosynthesis.
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How do you calculate the number of seedlings?
Answer: for 4 tomato plants their are 120 pea seedlings and it is calculated by multiplying the seedlings between plants spacing and within the spacing between the rows and detailed explanation is given below.
Explanation:
Add up the total number of row feet you have available for the crop , if you have two,5 foot rows available for peas ,their are total 10 row feet to fill .if at this point it is usually easiest to convert the number of feet to inches ,since most seed and plant recommendations are in inch spacing . then take the total number of inches available for the crop and divided by the row crop spacing for instance ,120 in divided by 1 ,per pea seed equals 120 pea seeds.96 divided by 24m per tomato plant equals 4tomato plants.
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Does Claire get addicted?
Jamie discovers Claire unconscious in the first episode of Outlander season 6 and is unable to revive her, which is when Claire starts using ether.
She is ecstatic when she finally awakens because she has succeeded in producing ether, a type of anaesthetic medicine.Due to her ongoing trauma from her experience with Lionel Brown's gang, Claire intended to use her freshly generated ether during surgery on her patients but instead ended up huffing it herself.The drug helps Claire stop experiencing nightmares and seeing Lionel Brown in her hallucinations, but as the season has gone on, Claire's use of the drug has veered dangerously close to addiction.Scientists refer to ether, also known as diethyl ether, as a colourless, fragrant substance that is very.
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Fireflies make their light. The light they give off looks green. The spectrum of their light is shown. Describe how you would use a tool to see a firefly’s light spectrum. Explain what the spectrum tells you about the light the firefly gives off. Include a comparison of the wavelengths of the light.
Answer:
To see the spectrum of light given off by a firefly, you could use a spectrometer. This is a tool that separates light into its different wavelengths, allowing you to see the intensity of the light at each wavelength. To use a spectrometer to see a firefly's light spectrum, you would need to capture the light given off by the firefly and shine it through the spectrometer.
The spectrum of a firefly's light would show a peak intensity at the wavelengths that correspond to the green color of the light. This tells us that the firefly's light is primarily made up of green light. The spectrum can also be used to compare the wavelengths of the light given off by the firefly to the wavelengths of other sources of light. For example, you could compare the spectrum of the firefly's light to the spectrum of light from a candle flame or a lightbulb to see how the wavelengths of the light from the firefly compare.
The apex of a firefly's light's spectrum would appear at wavelengths where the light is the color green. This indicates that green light makes up the majority of the firefly's brightness. The spectrum can be used to compare the wavelengths of the firefly's light to the wavelengths of light coming from other sources.
What spectrum tells you about the light of the firefly?A spectrometer could be used to view the firefly's light spectrum. This device divides light into its various wavelengths so that you can observe the strength of the light at each one. You would need to collect the light emitted by the firefly and shine it through the spectrometer in order to use a spectrometer to view the light spectrum of a firefly.
Therefore, To examine how the wavelengths of the light from the firefly compare, you may, for instance, look at the spectrum of its light in comparison compared to the color spectrum produced by a candle flame or a lamp.
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Euglenas are single-celled organisms. What can you confirm about euglenas from this diagram?
Anatomy of a Euglena consisting of Photoreceptor, Stigma (eyespot), Chloroplast, Nucleus, Cytoplasm, Membrane, Nucleolus, Flagellum, and Contractile vacuole.
A.
They’re exclusively heterotrophs.
B.
They’re capable of photosynthesis.
C.
They make energy solely from fermentation.
D.
They must consume plants to perform cellular respiration.
They are capable of photosynthesis due to presence of chloroplast. Therefore, option (B) is correct.
What are euglenas?The unicellular creature euglena has a sophisticated internal structure that includes a red "eyespot," a contractile vacuole that has the ability to eject water, and other organelles. Chloroplasts are found in photosynthetic organisms. They have two flagella—one long and one short—each of which may move the creatures.
It is the most researched member of the phylum Euglenophyta/ Euglenozoa and belongs to the Kingdom Protista. It may be discovered in peaceful puddles, ponds, and even swimming pools that contain freshwater. A number of animals have breathing vesicles that keep them from drying up. The Euglena is one of a kind since it is both heterotrophic (meaning it needs to ingest food) and autotrophic (meaning it can live without it) (can make its own food).
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What was Claire's diagnosis?
According to Claire's diagnostic, her small intestine either lacks or just contains a very little amount of proteolytic enzymes.
According to Claire's diagnosis, the lack of or decline in proteolytic enzymes in the small intestine may be the cause of the sluggish protein digestion. For the protein digestion process to be quick, as a digestion process by enzymes must be, these enzymes must be present in the small intestine in amounts that are acceptable. This is because a shortage of enzymes causes the metabolic processes to slow down because enzymes are in charge of accelerating them.
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What are two adaptations for gas exchange?
The two adaptations of gas exchange are: 1. Both capillaries and alveoli have walls that are made of a single cell. 2. Because of the alveoli's abundant blood supply and improved gas exchange.
O2 and CO2 diffuse from the alveoli into the blood and from the blood into the alveoli, respectively, in a process known as simple diffusion. A gradient in concentration is needed for diffusion.
As a result, a higher concentration (or pressure) of oxygen in the alveoli is required than in the blood, whereas a lower concentration (or pressure) of carbon dioxide is required. Breathing naturally assists us in this by constantly bringing in new air that is high in oxygen and low in carbon dioxide.e.
Our respiratory system is what causes us to breathe. The lungs, which are its main organ, are where oxygen (the air we breathe in) and carbon dioxide (the air we breathe out) are exchanged. Without this system, our body wouldn't be able to get the oxygen it needs to survive.
The body's main purpose is to get oxygen for the cells to consume and to get rid of the carbon dioxide that the cells make. includes the lungs themselves as well as the respiratory airways leading into (and out of) the lungs.
Air travels through the following structures in this order: nasal cavities (or oral cavity) > pharynx > trachea > primary bronchi (right & left) > secondary bronchi > tertiary bronchi > bronchioles > alveoli (site of gas exchange).
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1. Experimental results are compared against
the results of controls. How can controls
improve an experiment? sc.6.N.1.3
Aby ensuring that the experiment tests
only one variable
B by allowing for the experiment to test as
many variables as possible
D
by making sure everything in the
experiment remains constant
by guaranteeing that the experimental
outcome verifies the hypothesis
How do controls improve an experiment?
Not only do controls establish a baseline that the results of an experiment can be compared to, they also allow researchers to correct for possible errors. If something goes wrong in the experiment, a scientist can check on the controls of the experiment to see if the error had to do with the controls.
In your case your anwser: B. by allowing for the experiment to test as many variables as possible
I hope this helped and Merry Christmas!
Is cystic fibrosis caused by deletion mutation?
Yes, cystic fibrosis caused by deletion mutation.
What are deletion mutations?A deletion mutation occurs when a wrinkle forms on the DNA template strand and subsequently causes a nucleotide to be omitted from the replicated strand.
It is a type of frameshift mutation characterized by the loss of one or more nucleotides from the segment of DNA. Example of deletion mutation is DiGeorge syndrome.
Deletions occur when there is homologous but unequal recombination between gene sequences. Similar sequences in the human genome can cross over during mitosis or meiosis, resulting in a shortened portion of the gene sequence.
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sometime in the not-too-distant future, a catastrophic event ends the world as we know it, leaving only one population of 20,000 humans in north america. we sample a neutrally evolving locus with only two alleles, and find that the a1a1 genotype occurs in 7200 people. what is the expected number of people that are heterozygous at this allele, assuming hardy-weinberg equilibrium? group of answer choices 3,200 7,200 9,600 12,000 12,800
According to hardy-weinberg equilibrium, 12,000 persons should be heterozygous for this gene.
How are the anticipated heterozygotes determined?In relation to allele frequency, p, expected heterozygosity (Hexp = 2pq) for a 2-allele system is shown. The heterozygosity reaches its apex at a value of 0.5 when the allele frequencies are equal (p=q). At both ends, it is negligible because everyone is a homozygote of one type or the other.
How is heterozygous calculated by Hardy-Weinberg?The proportion of heterozygous people is equivalent to 2pq. In this instance, 2pq is 0.32, which indicates that 32% of people are heterozygous for this gene (2 (0.8)(0.2) = 0.32).
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What is the formula of capillary tube?
The formula for calculating the height of the liquid raised or decreased in a capillary tube is h=2Scosθρgr where height of the liquid is denoted as h, surface tension of the liquid is s and r is the radius of the tube and ρ is the density of liquid.
Capillary tubes are narrow cylindrical tubes with very small diameters. If these tubes are dipped in a liquid then the height of the liquid will either rise or decrease. Such a phenomenon is known as capillarity. The formula to compute the height of the liquid raised or decreased is known as a capillarity formula. The formula has been calculated by analysing all the forces applied on the liquid. Considering the force of attraction between the surface of the capillary tube and the molecules of the liquid, it develops a shape. The angle created by the edge of the liquid with the vertical tube plane is known as contact angle which is denoted by θ.
It can be formulated as h=2Scosθρgr.
In the above formula, height of the liquid is denoted as h, surface tension of the liquid is s and r is the radius of the tube and ρ is the density of liquid.
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When the 2 genes in a pair are identical it's called?
In genetics, homozygous means having inherited the same versions (alleles) of a genomic marker from both biological parents. As a result, a person who is homozygous for a genetic marker has two identical copies of that marker.
Each allele pair indicates the genotype of a single gene. Homozygous genotypes have two identical alleles at a certain locus, while heterozygous genotypes have two different alleles.
Synapsis. The pairing of two homologous chromosomes that occurs during meiosis is known as synapsis. This occurs during the prophase of meiosis I.
When homologous chromosomes pair, the homologous chromosomes cross across and exchange genetic material at certain places. This is known as crossing over.
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What are 3 examples of prokaryotic cells?
Blue-green algae, bacteria, and mycoplasma are prokaryotes. Bacteria are the most prevalent and fastest-growing prokaryotes.
What kinds of cells are prokaryotic examples?Unlike prokaryotic cells, eukaryotic cells contain interior cellular bodies. Prokaryotes include different forms of bacteria and archaea. Eukaryotes include protists, fungi, plants, and mammals (everything except prokaryotes).
Prokaryotic cells, where are they?These single-celled organisms are present across the entire planet, from the dirt to human tissue. They differ in their architecture and shapes. The element of the cell wall that gives it structure is called peptiddoglycan. A few of the distinguishing features of bacteria are pili, flagella, and capsules.
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Manuel and three other students are studying the effects of various factors on the growth of plants in a garden. Manuel is asked to investigate the effects of abiotic factors that involve the geosphere. The other three students are investigating effects that involve the biosphere, hydrosphere, and atmosphere.
Which factor would be entirely Manuel's responsibility to investigate?
The size of the rocks mixed into the garden soil would be entirely Manuel's responsibility to investigate.
What is geosphere?The non-living components of the environment, or abiotic influences, have a significant impact on living things. They may assist in figuring out topics like how tall trees grow, the locations of various animals and plants, and the causes of bird migration. Abiotic variables including water, sunshine, oxygen, soil, and temperature are crucial.
The earth's surface and inner landforms, as well as the rocks, minerals, and geosphere are all one and the same. It begins at the surface and descends all the way to the planet's centre. The geosphere serves as a source of natural resources and a location for food production.
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What is the distinguishing characteristic of snails?
The snail is equipped with a spiral-shaped shell that works as armor in any dangerous condition. The entire soft body of the snail moves inside the shell.
The snails come under the gastropods family of Mollusca. They lack a backbone ( invertebrates). The major portion of snails is the head, neck, visceral hump, tail, and foot. The radula serves as the molluscan tongue. The entire organ system is enveloped in an external shell. Snail move on the ground with the help of the muscular feet. The snails have both male and female gender. The external shell is made from the secretion of the mantle of the snail.
Hence, external shell is amusing feature of snail among other organism.
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What are the functions of the mammalian kidney?
Answer: The kidneys remove from the blood the nitrogenous wastes such as urea, as well as salts and excess water, and excrete them in the form of urine.
Explanation:
The functions of the mammalian kidney are water retention, filtration of blood, excretion of nitrogenous waste, regulation of salt balance in the blood, and production of urea. The correct options are a, b, c, d, and e.
What are kidneys?In vertebrates, the kidneys are two reddish-brown, bean-shaped organs. The nitrogenous wastes, such as urea, salt, and extra water, are removed from the blood by the kidneys, which then excrete them as urine. Wastes and extra fluid are removed from your body by your kidneys.
Additionally, your kidneys eliminate acid that is created by your body's cells and keep the levels of water, salts, and minerals in your blood—such as sodium, calcium, phosphorus, and potassium—in a healthy range.
Therefore, the correct options are
water retention filtration of blood excretion of nitrogenous waste regulation of salt balance in the blood production of ureaTo learn more about kidneys, refer to the below link:
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The question is incomplete. Your most probably complete question is given below:
water retention
filtration of blood
excretion of nitrogenous waste
regulation of salt balance in the blood
production of urea
Why is the endoplasmic reticulum important for survival?
The endoplasmic reticulum (ER) is an organelle that plays crucial roles in a number of cellular activities, including as protein secretion, lipid production, and intracellular calcium homeostasis which are necessary for cell survival and regular physiological operations. The cell cannot exist without the endoplasmic reticulum.
Endoplasmic reticulum is the network of tubes and sac-like structures in a cell's cytoplasm, which resembles gel. The endoplasmic reticulum transports chemicals and proteins. The endoplasmic reticulum's outside surface can be either smooth or rough. The rough endoplasmic reticulum produces the necessary proteins for the cell and has several ribosomes on its surface. Other compounds that the cell requires, such as lipids (fats) and carbohydrates, are produced by the smooth endoplasmic reticulum (sugars). A cell organelle is the endoplasmic reticulum.
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Who does Boxer represent in the Russian Revolution?
The peasant workers of Russia represents the Boxer in the Russian revolution.
The Russian rural workers are symbolised by the boxer. The Tsar Nicholas II, who ruled from 1894 until his expulsion in 1917, took advantage of them. The employees were kept in a position where they could never make enough money to cover their living expenses. Although the 1917 Revolution aimed to solve this issue, during Stalin's control, it actually made things worse and increased famine. Boxer, who has had time to consider the situation, expressed the opinion of the majority when he said, "If Comrade Napoleon says so, it must be true." And from that point on, in addition to his personal adage, "I will work harder," he also adopted the proverb, "Napoleon is always correct."
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How many phenotypes are possible with 3 genes?
The phenotypes are possible with 3 genes qre the 6 alleles formed from the phenotype.
An excellent example of the inheritance of multiple alleles is the human blood type. Blood types exist in four possible phenotypes.
A, B, AB, O. The gene that determines blood type has three alleles.
You only have 2 out of 3 genotypes --- one from your mom and one from your dad). Genotyping is the assessment of variants present at a particular site (locus) in the genome. It can be represented by a symbol. For example, BB, Bb, bb can be used to represent specific variants of a gene.
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