Question

Ratio between completely homozygous dominant and homozygous recessive individuals of a dihybrid cross is

• A. 1 : 1
• B. 2 : 2
• C. 6 : 10
• D. 10 : 6

Answer 1

Answer: (A)

1 : 1

In the Mendel dihybrid cross, in the F₂ generation, 16 progeny are formed. In this, one is completely homozygous dominant(YYRR) and one is completely homozygous recessive(yyrr). The ratio exists is 1:1

So, the correct option is ‘1:1’