Short pea plants exist in the P1 and F2 generations. What happens to the phenotype in the F1 generation?

In a typical Mendelian cross, tallness is dominant over shortness. The F1 plants can inherit the allele for shortness while also carrying a dominant tall allele, so they appear tall even though the shortness allele remains in their genotype. Therefore, the short-plant phenotype is masked in the F1 generation, as choice B states.

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