Question

a cross between RRyy x rrYY , different phenotypes obtained in F2 generation are-
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Answer 1

Therefore, a dihybrid organism is one that is heterozygous at two different genetic loci. ... Organisms in this initial cross are called the parental, or P generation. The offspring of the RRYY x rryy cross, which is called the F1 generation, were all heterozygous plants with round, yellow seeds and the genotype RrYy.