In sweet pea, genes C and P are necessary for colour in flowers. The flowers are white in the absence of either or both the genes. What will be the percentage of coloured flowers in the offspring of the cross Ccpp×ccPp ?
25%
75%
100%
50%
A
75%
B
25%
C
100%
D
50%
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Solution
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The correct option is B 25%
The probabilities of the gamete formed are 4: Ccpp will form (Cp and cp) and ccPp will form (cP and cp). Hence 25% of the flowers will be colored.
So, the correct answer is '25% '.
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