Q. 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
A) Codominance
B) Incomplete dominance
C) Partial dominance
D) Complete dominance
Explanation
[Solution from source] In AB individuals both the IA and IB alleles are fully expressed, producing both A and B proteins, which is codominance. In incomplete dominance the heterozygote would have an intermediate phenotype instead of showing both parental products. Answer (1).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.