MHT CET · BIOLOGY · STD 12 - 3. Inheritance and Variation
In a cross performed between parents considering two contrasting characters yellow round and green wrinkled seed. In the \(F _2\) generation progeny, the ratio of yellow and green will be __________ .
- A 9:3
- B 12:4
- C 4:1
- D 4:12
Answer & Solution
Correct Answer
(B) 12:4
Step-by-step Solution
Detailed explanation
In a cross between YYRR and yyrr, \(F _1\) generation gives YyRr.
When \(F _1\) generation is self-pollinated, it gives
Yellow round = 9 and Yellow wrinkled = 3
Green round = 3 and Green wrinkled = 1
Thus, ratio of Yellow and Green will be 12:4.
When \(F _1\) generation is self-pollinated, it gives
Yellow round = 9 and Yellow wrinkled = 3
Green round = 3 and Green wrinkled = 1
Thus, ratio of Yellow and Green will be 12:4.
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