Question 26:
In the F2 generation of a cross, progeny having different traits are produced in the ratio 3:1. State whether it is a monohybrid cross or a dihybrid cross ? Give one example of such a cross.
Lakhmir Singh Biology Class 10
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5
it is a monohybrid cross
example if a tall plants of F1 generation are self crossed (Tt) then we get F2 generation with 3 tall (TT) (Tt) (Tt)plants and 1 short plant (tt)
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example if a tall plants of F1 generation are self crossed (Tt) then we get F2 generation with 3 tall (TT) (Tt) (Tt)plants and 1 short plant (tt)
.....
Answered by
3
monohybrid cross because here the phenotypic ratio of F2 progeny S3 is 21 and dihybrid cross the phenotypic ratio of F2 progeny is 9823 is 23 is 21.
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