Question

A plant of F1 generation with genotype AABbCc. On selfing of this plant what is the phenotypic ratio in F2 generation?
A.3:1
B.9:3:3:1
C.1:1
D.27:9:9:9:3:3:3:1

Answer 1

I think,
D) 27:9:9:9:3:3:3:1 .

Answer 2

A plant of F1 generation with genotype AABbCc on selfing of this plant, the phenotypic ratio in F2 generation will be option (D) 27:9:9:9:3:3:3:1.

This number of outcomes of a tri-hybrid cross must be equal to sixty-four and this ratio is correct according to that. Each of the ratio parts stands for the following phenotypes.

a. 27 – Dominant phenotype of all three traits

b. 9 – Dominant trait of first two traits and recessive of third trait

c. 9 – Dominant traits of first and third trait and recessive of second trait

d. 9 – Dominant traits of second and third traits and recessive of the first trait

e. 3 – Dominant trait of first and recessive of second and third traits

f. 3 – Dominant of second and recessive of first and third traits

g. 3 – Dominant of third and recessive of first and second traits

h. 1 – Recessive phenotype of all three traits