R = Dominant red flowersr = Recessive white flowersAs part of the classs unit on genetics, Mr. Franks 8th period science class decided to cross two plants. Each of the parent plants had red flowers and the genotype Rr. If the plants produce 100 offspring, about how many of the plants will have red flowers?

GENETICS AND DISEASE

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Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]

R = Dominant red flowersr = Recessive white flowersAs part of the class’s unit on genetics, Mr. Franks’ 8th period science class decided to cross two plants. Each of the parent plants had red flowers and the genotype Rr. If the plants produce 100 offspring, about how many of the plants will have red flowers?

A	100
B	75
C	25
D	50

Explanation:

Detailed explanation-1: -The allele for red flowers is incompletely dominant over the allele for white flowers. Red + white = pink. The results of a cross where the alleles are incompletely dominant can still be predicted, just as with complete dominant and recessive crosses.

Detailed explanation-2: -P generation is the parental generation. This generation is the first in any genetic cross pollination experiment. These parents should be true bred so that their alleles are known. F1 generation is the first generation of offspring produced by the P generation.

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GENETICS AND DISEASE