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Question
A blue colour flower plant denoted by BB is crossbred with that of white colour flower plant denoted by bb.
(a) State the colour of flower you would expect in their F1 generation plants.
(b) What must be the percentage of white flower plants in F2 generation if flowers of F1 plants are self-pollinated?
(c) State the expected ratio of the genotypes BB and Bb in the F2 progeny.
Solution
Blue colour flower plant:- BB
White colour flower plant:- bb
The cross involved is as follows:
(a) In F1 generation, all plants will have blue flower.
(b) In the F2 generation, 25% of flowers are white in color.
(c) The ratio of the genotypes BB and Bb in the F2 generation would be 1(BB) : 2(Bb).
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