Question

29.
A blue colour flower plant denoted by BB is crossed with that of a
White colour flower plant denoted by bb.
a. State the colour of flower you would expect in their F1 generation.
b. What must be the percentage of white flower plants in F2
generation
If Flowers of F 1 plants are self pollinated
c. State the expected ratio of the genotypes BB and Bb in the F2
progeny.​

Answer 1

Answer:

Hope it's helpful to you

1) The colour of the flower expected in the F1 generation will be blue since blue colour is dominant (BB) over white (bb) and a cross between homozygous dominant and homozygous recessive (BB x bb) results in the formation of all flowers with Bb genotype where blue colour will dominate.

Explanation:

Blue colour flower plant - BB

White colour flower plant - bb

The cross involved is as follows:

(a)In F1 generation, all plants will have a blue flower.

(b)In the F2 generation, 25% of flowers are white in colour.

(c)The ratio of the genotypes BB and Bb in the

F2 generation would be 1(BB) : 2 (Bb).