In a typical Mendelian cross which is a dihybrid cross, one parent is homozygous for both dominant traits and another parent is homozygous for both recessive traits. In the f2 generation, both parental combinations and recombinations appear. The phenotypic ratio of parental combinations to recombinations is ..................

Question

In a typical Mendelian cross which is a dihybrid cross, one parent is homozygous for both dominant traits and another parent is homozygous for both recessive traits. In the f2 generation, both parental combinations and recombinations appear. The phenotypic ratio of parental combinations to recombinations is .................. (A) 10: 6 (B) 9: 7 (C) 12: 4 (D) 15: 1

Tardigrade Admin · Accepted Answer

In 9: 3: 3: 1 ratio, (9 + 1) 10 are parental and (3 + 3) 6 are recombinants.

10 : 6

9 : 7

12 : 4

15 : 1

In 9 : 3 : 3 : 1 ratio, (9 + 1) 10 are parental and (3 + 3) 6 are recombinants.