Question

Short pea plants exist in the P1 and F2 generations. What happens to the phenotype in the F1 generation? The allele for short pea plants is absent from the genotypes in the F1 generation. The allele for short pea plants is masked during the F1 generation, but it is still present in the genotype. The allele for short pea plants is not passed on to the F1 generation.

Answer 1

Answer:

B: The allele for short pea plants is masked during the F1 generation, but it is still present in the genotype

Explanation:

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Answer 2

• The phenotype in the Filial 1 generation is that of a considerably tall plant.
• This is not because of the lack of absence of the short plant gene, but because shortness is a recessive trait and needs to be present in pairs to be expressed.
• Here, the Filial 1 generation is present in heterozygous condition and has both the alleles: the one responsible for tallness and the one responsible for shortness.
• This does not mean that the allele for shortness is not present in Filial 1 generation. It just means that its effects are masked.