Q. 143.9( 10 Votes )

A pea plant with

Answer :

(a) In the first generation i.e. in F1 generation, all the flower plants will be of blue color. It can be shown as follows:

Untitled.png


(b) When flowers of f1 generation are self-pollinated:


Untitled.png


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 =


Percentage =


So, Ratio percentage of white flower plant is 25%


(c) The expected ratio of the genotypes BB and Bb in the F2 progeny is as follows:


Untitled.png


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