In Mendel's pea plant experiments, in order for him to have observed a 3:1 phenotypic ratio in the F₂ generation, which of the following must be true?

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Mendel's observation that the F₂ generation produced a 3:1 phenotypic ratio is explained by the principle of segregation, which states that the two alleles of a gene separate during gamete formation, so that each gamete receives only one allele. This means that in the F₁ generation, the two alleles of each gene segregate from each other into different gametes, with equal probability, and then recombine randomly in the next generation. This leads to a 3:1 phenotypic ratio if the two alleles are different and recessive, as in the case of Mendel's pea plants. Homozygosity or breed true status of the parents is not necessary to produce this ratio, as long as the principle of segregation holds.

In Mendel's Pea Plant Experiments, in Order for Him to Have