Q.
A human male produces sperms with the genotypes AB, Ab, aB, and ab pertaining to two diallelic characters in equal proportions. What is the corresponding genotype of this person?
A) AaBB
B) AABb
C) AABB
D) AaBb
Explanation
[Solution from source] Four gamete types in equal proportions are produced only by a double heterozygote (AaBb) with independent assortment. AaBB or AABb would give only two gamete types, and AABB only one. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.