Question

In a Punnett square with 16 boxes, the maximum number of different genotypes and phenotypes respectively, available in the ${F_2}^{}$ generation of a dihybrid cross are

• A. 8 and 16
• B. 9 and 4
• C. 2 and 16
• D. 16 and 9

Answer 1

The correct option is B 9 and 4

The dihybrid cross phenotypic ratio is 9:3:3:1 = 4 phenotypes, whereas the genotypic ratio is 1:2:1:2:4:2:1:2:1 number of genotypes is 9 for dihybrid cross.