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3 years ago

What will be the results in the F2 generation after a monohybrid cross?

Biology

1 answer:

Sedbober [7]3 years ago

5 0

Answer: $\dfrac34$ dominants and $\dfrac14$ recessive.

Explanation:

Mendel's monohybrid cross is definied as

a genetic combination of two homogeneous genotypes.
One is dominant(TT) to other (tt-recessive).

Result in F1 generation: 4 dominant(Tt), 0 recessive (tt)

Result in F2 generation: 3 dominant(TT, 2Tt), 1 recessive (tt)

[If one T is present then we call it Tall (Donimant effect), if none then we call it dwarf]

The results in the F2 generation after a monohybrid cross: $\dfrac34$ dominants and $\dfrac14$ recessive.

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See the attached image for the Punnet's square analysis of the cross.

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