Codominance is an inheritance pattern. Human blood type is an example of CODOMINANCE where both the A and B blood types can be expressed.
<h3>What is codominance?</h3>
Codominance refers to the inheritance pattern in which a phenotype expresses two alternative variants coded by two alleles inherited from each homozygous parent.
When two individuals, that are homozygous and different for a trait, are crossed they produce heterozygous individuals.
These progenies express both parental phenotypes, as it is an additive expression of their parents' genes. Both alleles are equally expressed.
The is not complete dominance in these cases.
In the case of blood, the I gene determines the blood type of a person.
→ I is <u>completely dominant </u>over the i recessive allele.
→ Allele I can be either IA and IB, which are <u>codominant</u>.
- The person IAi expresses the A blood type ⇒ complete dominance
- The person IBi expresses the B blood type ⇒ complete dominance
- The person IAIB expresses the AB blood type ⇒ codominance ⇒ both alleles are simultaneously expressed
Human blood type is an example of CODOMINANCE where both the A and B blood types can be expressed.
You can learn more about codominance at
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Answer:
Any pet that isn't dangerous (ex: snake isn't the best idea) and can be taken care of by a child. So, a fish would be good because it doesn't need to be walked and doesn't need much attention, just to be fed, which the child can do safely. So just make a list of other easy pets like that :)
Explanation:
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Answer:
25% of the heterozygous cross are short, and the offspring of a homozygous dominant and homozygous recessive pea plant will always display the dominant trait (phenotype), because they are heterozygous.
Explanation:
In this explanation, I'm assuming that the allele "T" for tall plants is dominant to the allele "t" for short plants, like in Gregor Mendel's pea plant experiment.
A homozygous tall pea plant will have the genotype "TT" and a homozygous short plant will have the genotype "tt" because homozygous means that both alleles are identical. Since "T" is dominant over "t", any plant with at least one "T" allele will be tall (the dominant trait), regardless of what the other allele is. Let's look at a Punnett square for this cross:
Explanation:
The answer of the question is A
A virus's ability to infect an animal cell depends primarily upon the "<span>presence of receptor sites on the cell membrane"
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