NEET BIOLOGY

GENETICS AND EVOLUTION

GENETIC BASIS OF INHERITANCE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Neither allele is dominant over the other and each is equally expressed in a heterozygote
A
Complete dominance
B
Incomplete dominance
C
Co-Dominance
D
Homozygous advantage
Explanation: 

Detailed explanation-1: -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-2: -Incomplete Dominance One allele is NOT always completely dominant over another allele. Sometimes an individual has a phenotype between the two parents because one allele is not dominant over another. This pattern of inheritance is called incomplete dominance.

Detailed explanation-3: -Codominance, as it relates to genetics, refers to a type of inheritance in which two versions (alleles) of the same gene are expressed separately to yield different traits in an individual.

Detailed explanation-4: -This type of relationship between alleles, with a heterozygote phenotype intermediate between the two homozygote phenotypes, is called incomplete dominance.

Detailed explanation-5: -A genetic scenario where neither allele is dominant or recessive and both get expressed is known as ‘codominance’.

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