GENETICS AND EVOLUTION
EVOLUTION
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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100% PP
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100% Pp
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50% PP-50% pp
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25% PP 50%-Pp 25%-pp
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Detailed explanation-1: -There are three available genotypes, PP (homozygous dominant ), Pp (heterozygous), and pp (homozygous recessive). All three have different genotypes but the first two have the same phenotype (purple) as distinct from the third (white).
Detailed explanation-2: -These are exactly the same genotype. The other possible genotypes of the offspring are PP and pp. The combinations PP, PP, and pP have the same phenotype-purple flowers. This is because each contains at least one dominant allele (P).
Detailed explanation-3: -There is a 100% visibility rate in the single dominant phenotype. As there is no second phenotype, there is no phenotypic ratio. If we did put this result as a ratio, it would be 4:0.
Detailed explanation-4: –1 PP, 2 Pp, 1 pp-This genotypic ratio for the offspring is not possible as the cross produces only Pp genotypes.-All pp-Since the p allele is recessive therefore pp genotype gives white flowers.