if an organism heterozygous at two loci is crossed with an individual that is heterozygous for...
if an organism heterozygous at two loci is crossed with an individual that is heterozygous for one locus and homozygous dominant for the other, what genotypes can be expected and at what frequency.
Homework Answers
Ans. Suppose in a plant red flower(R) is dominant over white flower (r) and at other locus yellow seeds are dominant over green seeds.
So, according to the question :-
Heterozygous at two loci crossed with heterozygous at one locus and homozygous dominant for the other
RrYy X RrYY
Gametes RY, Ry, rY, ry x RY, rY
F1 progeny = RRYY, RRYy, RrYY, RrYy
RrYY, RrYy, rrYY, rrYy
RRYY = 1/8
RRYy =1/8
RrYY = 2/8
RrYy =2/8
rrYY =1/8
rrYy= 1/8
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