Q. Human skin colour is controlled by several gene pairs. Let us assume here that there are just three gene pairs on different chromosomes and that for each pair there are two alleles an incompletely dominant one that codes for no melanin deposition and an incompletely recessive one that codes for no melanin deposition. If a very dark skinned person marries a very light skinned women, what will be the chance that their offspring will have very dark skin?

A) 0
B) 1/4
C) 5/8
D) 9/64
Explanation

For the given case, there is no chance that the offsprings will have very dark skin.

Dr. Abubacker
Reviewed by Dr. Abubacker

Physics Educator & NEET/JEE Specialist

Ph.D. in Physics with 19+ years of teaching experience.

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