Question

In a monohybrid cross the ratio of $F_2$ true breeding dominant and true breeding recessive would be

• A. 50 : 50
• B. 25 : 25
• C. 75 : 25
• D. 25 : 75

Answer 1

Answer: (B)

25 : 25

In the monohybrid cross, in the F2 generation, 4 progeny are formed in which one homozygous dominant(25%), two are heterozygous dominant(50%) and one is homozygous recessive(25%).

So, the correct option is ’25:25’.