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Answer :
The F2 generation refers to the second generation of offspring resulting from a cross between two F1 individuals. In this case, two pink offspring (RW) are crossed.
To determine the proportion of genotypes in the F2 generation, we need to consider the possible combinations of alleles from the parental generation (F1).
The red flower (RR) has two copies of the red allele, while the white flower (WW) has two copies of the white allele. The pink flower (RW) has one copy of the red allele and one copy of the white allele.
When two pink offspring (RW) are crossed, there are three possible genotypes for the F2 generation: RR, RW, and WW. To calculate the proportion of each genotype in the F2 generation, we can use a Punnett square. When we cross two pink flowers (RW), the possible genotypes in the F2 generation are: -
1 RR: This occurs when both pink flowers contribute their red alleles.
2 RW: This occurs when one pink flower contributes its red allele and the other pink flower contributes its white allele. - 1 WW: This occurs when both pink flowers contribute their white alleles. Therefore, the expected proportion of genotypes in the F2 generation would be: A. 1 RW: 2 RR: 1 WW
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