A blue colour flower plant denoted by BB is cross-bred with that of a white colour flower plant denoted by bb.
(a) State the colour of the flower you would expect in their F1 generation plants.
(b) What must be the percentage of white flower plants in the 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. (Delhi 2012)

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(A) The F1 generation’s flower will be blue in colour.
(b) If the F1 generation’s flowers self-pollinate, then 25% of the F2 generation’s flowers must be white.
(c) A 1:2 ratio between the genotypes BB and Bb is expected in the progeny of the F2 generation.
The cross shown above could represent the results mentioned above:

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