F2 Phenotype Genotype Gametes produced
3 Yellow : 1 green GG Gg gg
Individual pea plants obviously have more than a single phenotype and Mendel followed the inheritance of other characters in addition to seed coat color. In one example of his crossing experiments, Mendel tracked the simultaneous inheritance of both seed coat color and seed surface condition (either wrinkled ("angular") or smooth). He constructed an initial cross among pure-breeding lines identical to what he had done when tracking seed color inheritance, except now there were two phenotypes (Fig. 2.4).
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