NEET BIOLOGY

GENETICS AND EVOLUTION

GENETIC BASIS OF INHERITANCE

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

What do you call the non-Mendelian inheritance pattern where both traits are dominant and both appear in the organism with heterozygous genotype?

A	Codominance
B	Incomplete dominance
C	Polygenic traits
D	None of the above

Explanation:

Detailed explanation-1: -Closely related to incomplete dominance is codominance, in which both alleles are simultaneously expressed in the heterozygote.

Detailed explanation-2: -Codominance. Codominance occurs when both alleles are expressed equally in the phenotype of the heterozygote. The red and white flower in the figure has codominant alleles for red petals and white petals.

Detailed explanation-3: -Codominance. Two alleles may be simultaneously expressed when both are present, rather than one fully determining the phenotype.

Detailed explanation-4: -Codominance occurs when two alleles for a gene are expressed equally in the phenotype of heterozygotes. A human example of codominance also occurs in the ABO blood type, in which the A and B alleles are codominant.

Detailed explanation-5: -Codominance 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.

There is 1 question to complete.