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steposvetlana [31]
3 years ago
11

"Mendel knew that the allele for smooth (R) seeds was dominant over the allele for wrinkled (r) seeds. If this cross was Rr × rr

, what numbers would fill the middle column"
Biology
1 answer:
s344n2d4d5 [400]3 years ago
3 0

Rr and rr in the ratio of 1:1

Explanation:

If allele for smooth seed is Dominant over the allele for wrinkled seeds, and they are crossed 50 per-cent of the progeny will be heterozygous dominant  and 50 per-cent will be homozygous recessive.

Rr  X  rr

Rr Rr rr rr  F1 generation.

     r      r

R    rR   rr

r     Rr   rr

From Punnet square it will be 50 per-cent  chance each of rr and Rr.

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