Zoology - Principles of Inheritance and Variation Question with Solution | TestHub
ZoologyPrinciples of Inheritance and VariationMonohybrid and Dihybrid CrossesEasy2 minPYQ_2020
ZoologyEasysingle choice
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 x ccPp?
Options:
Answer:
B
Solution:
It is a dihybrid cross.
We know that Ccpp x ccPp
Male gametes are Cpcp
Female gemetes are cPcp
Hence, ratio = 1 (colour) : 3 (white)
i.e., 25% coloured flower.
| Cp | cp | |
|---|---|---|
| cP | CcPp colour | cPcp white |
| cp | Cpcp white | cpcp white |
Stream:NTA_ABHYAS_NEETSubject:ZoologyTopic:Principles of Inheritance and VariationSubtopic:Monohybrid and Dihybrid Crosses
⏱ 2mℹ️ Source: PYQ_2020
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