NEETZoologyPrinciples of Inheritance and Variation
How many types of gametes are produced in Mendel's dihybrid cross?
Options
- A2
- B3
- C4
- D8
Correct answer
C. 4
Step-by-step solution
The Punnett square can be effectively used to understand the independent segregation of the two pairs of genes during meiosis and the production of eggs and pollen in the F1 RrYy plant. Consider the segregation of one pair of genes R and r. Fifty per cent of the gametes have the gene R and the other 50 per cent have r. Now besides each gamete having either R or r, it should also have the allele Y or y. The important thing to remember here is that segregation of 50 per cent R and 50 per cent R is independent from th