What proportion of the offspring of a cross between two heterozygous parents will exhibit the recessive condition phenotypically
a
1/4
b
1/2
c
3/4
d
4/4
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Discussions (10)
Ades0la
12 years ago
NO. Assuming R is for dominant and r is for recessive,the heterozygous parents will be Rr x Rr. After crossing, the result will be, RR Rr Rr rr. since Phenotype is the physical attributes, the only offspring exhibiting the recessive condition is rr and that's just one out of four. Therefore, the proportion is 1/4 (A).
adeluv137
11 years ago
the answer isnt 1/4 cox the products u get when Bb x Bb u get BB Bb Bb and bb. So d one with recessive bs is 3/4. Check it out!
