Question

A blue colour flower plant denoted by bb is cross bred with that of white colour flower denoted by bb. The f1 all produced blue coloured flower plants. What would be the phenotypic and genotypic ratio of the offspring, if a heterozygous blue coloured flower plants is crossed with a white flower

Answer 1

this is a test cross in which 1 white flower 1 blue flower is produced

Answer 2

BB * ww -----------------------------------Parent Line

B B * w w ----------------------------------Gametes

Bw Bw --------------------------------------F 1 Generation

Bw * Bw --------------------------------------F 1 generation

B w * B w ------------------------------------Gametes

BB Bw Bw ww -----------------------------F 2 generation

(a) Blue is the expected color in F 1 generation.

(b) Blue color : White color = 3:

Thank you.....!!!!