question_answer

If AAbb \[\times \] aaBB, then phenotypic ratio of its progeny will be

A)  9 : 3 : 3 : 1     

B)  1 : 2 : 1

C)  1 : 1 : 1 : 1      

D)  4 : 1

Correct Answer: A

Solution :

The phenotypic ratio will be 9 : 3 : 3 : 1. Dihybrid test cross gives 1:1:1:1 ratio Law of segregation gives 1 : 2 : 1 genotypic ratio in \[{{F}_{2}}\] generation.