Pure-bred round-yellow pea seeds have genotype RRYY and the pure-bred wrinkled-green pea seeds have genotype rryy. Keeping this in mind, write the phenotypes of the following genotypes of hybrid pea seeds:(a) Rryy    (b) rrYy    (c) rrYY    (d) RrYy    (e) RRyy


When Pure-bred round-yellow pea seeds have genotype RRYY and the pure-bred wrinkled-green pea seeds have genotype rryy, then phenotypes of

(a) Rryy = Round - green pea seeds

(b) rrYy  = Wrinkled - yellow pea seeds 

(c) rrYY  = Wrinkled - yellow pea seeds

(d) RrYy  = Round - yellow pea seeds

(e) RRyy = Round - green pea seeds

[Extra information:

R - Round shape gene is dominant over r - wrinkled shape gene;

Y - yellow colour gene is dominant over y - green colour gene. Thus R and Y expresses itself and does not allow r and y to express unless recessive genes are present in homozygous form.]

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Updated on: 20-Mar-2023

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