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Question: Answered & Verified by Expert
In sweet peas, 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?
BiologyPrinciples of Inheritance and VariationNEET
Options:
  • A 100%
  • B 75%
  • C 25%
  • D 50%
Solution:
2091 Upvotes Verified Answer
The correct answer is: 25%
Parents: Ccpp × ccPp

Male gametes are Cp, cp
Female gametes are cP, cp.



Presence of either C and P gene is required for the flower to exhibit colour. Thus, a white flower has the genotype is ccpp.

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