Why did all of the F₁ offspring of Mendel's classic pea cross always look like one of the two parental varieties?
A) No genes interacted to produce the parental phenotype.
B) Each allele affected phenotypic expression.
C) The traits blended together during fertilization.
D) One allele was dominant.

Question

Quizplus · Accepted Answer

One allele was dominant, meaning it was always expressed in the phenotype of the F1 offspring, masking the expression of the other allele (recessive). This is why the F1 offspring always looked like one of the two parental varieties.

Why Did All of the F₁ Offspring of Mendel's Classic