The genotypic ratio of progenie in a dihybrid test cross is

A. 9 : 3 : 3 : 1

B. 9 : 7

C. 1 : 2 : 1

D. 1 : 1 : 1 : 1

Answer: Option D

Solution(By Examveda Team)

The genotypic ratio of progeny in a dihybrid test cross is 1 : 1 : 1 : 1.
A dihybrid cross describes a mating experiment between two organisms that are identically hybrid for two traits.
A dihybrid test cross is obtained by crossing any one parent with a heterozygous condition from the F1 generation with a parent which is double homozygous and recessive. The ratio obtained is 1 : 1 : 1 : 1.