Question

A blue colour flower plant denoted by BB is cross bred with that of white colour flower denoted by bb.
1)State the colour of flower you would expect in their F1 generation plants.
2)what must be the percentage of white flower plants in f2 generation if F1 plants are self-pollinated?
3)State the expected ratio of the genotypes BB and bbin the F2 progeny.

THE FIRST ANSWER WILL BE MARKED AS BRAINLEIST ANSWER ​

Answer 1

Explanation:

In the first generation i.e. in F, generation, all the flower plants will be of blue color.

When flowers of f1 generation are self pollinated:

So, in F2 generation, there will be three blue Flowers and one white flower. So they ratio of blue flower plant to ratio of white flower plant is 3:1 But we need to find the ration percentage of white flower which is calculated as follows:

percentage= no. of White flower plant/ total plants in F2 generation *100

Precentage=1/4*100

So, Ratio percentage of white flower plant is 25% The expected ratio of the genotypes BB and Bb in the F2 progeny is as follows:

genotype in F2 =BB Bb Bb Bb

phenotype in F 2 = blue blue blue white