Question

Two parents have the genotype Gg. What is the chance any of their children will have a homozygous recessive genotype?
A) 50%
B) 75%
C) 100%
C) 25%

Answer 1

The genotypes of the parents are :

Gg and Gg

The gametes will be G g and G g

Genotypes of first progeny will be

GG Gg Gg gg

Homozygous recessive is gg which is only one out of four

So the percentage will be 25%.