Neet Solved Paper 2013 Question 32

Question: If two persons with AB’ blood group marry and have sufficiently large number of children, these children could be classified as A’ blood group : AB’ blood group : ‘B’ blood group in 1 : 2 : 1 ratio. Modern technique of protein electrophoresis reveals presence of both A’ and ‘B’ type proteins in AB’ blood group individuals. This is an example of

Options:

A) co dominance

B) incomplete dominance

C) partial dominance

D) complete dominance

Show Answer

Answer:

Correct Answer: A

Solution:

In codominance both alleles of a pair express themselves fully in $ {F_1} $ hybrid.

It is contrary to the situation seen in incomplete dominance, where traits express themselves only partially.

This is not the example of partial dominance or complete dominance

$ AB\xrightarrow[{}]{{}}\underset{Genotype}{\mathop{{{|}^{A}}{{|}^{B}}}},\xrightarrow[{}]{{}}Antigen,A $ $ \text{+Antigen},B\xrightarrow[{}]{{}}Codominace $