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A recessive homozygote is crossed with a heterozygote of the same gene. What will be the phenotype of the F 1 -generation?

A. All dominant 

B. 75% dominant, 25% recessive 

C. 50% dominant, 50% recessive 

D. 25% dominant, 50% heterozygous, 25% recessive

1 Answer

+1 vote
by (56.2k points)
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Best answer

Let us take tt as homozygous recessive & Tt as heterozygous dominant. So the cross will be Tt*tt. 

The progenies in F1 generation are –

Tt tt
Tt tt

So Tt (dominant phenotype): tt (recessive phenotype) = 1:1

Therefore, 50% dominant & 50% recessive.

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