NEET BIOLOGY

GENETICS AND EVOLUTION

GENETIC BASIS OF INHERITANCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
When, in a hybrid (heterozygous), BOTH alleles are expressed, the type of dominance is ____
A
complete dominance
B
incomplete dominance
C
codominance
D
multiple alleles
Explanation: 

Detailed explanation-1: -Codominance. As opposed to partial dominance, codominance occurs when the phenotypes of both parents are simultaneously expressed in the same offspring organism.

Detailed explanation-2: -Closely related to incomplete dominance is codominance, in which both alleles are simultaneously expressed in the heterozygote.

Detailed explanation-3: -Codominance occurs when both alleles show dominance, as in the case of the AB blood type (IA IB) in humans.

Detailed explanation-4: -Codominance Definition Codominance is a form of inheritance wherein the alleles of a gene pair in a heterozygote are fully expressed. As a result, the phenotype of the offspring is a combination of the phenotype of the parents. Thus, the trait is neither dominant nor recessive.

Detailed explanation-5: -Codominance is the condition when both the recessive and dominant alleles express simultaneously in the F1 hybrid.

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