The conversation between human and AI assistant.
How do I find the phenotypic ratio?
Can you give me an example?
Sure. Let's say you cross two pea plants, one with yellow seeds and one with green seeds. The yellow seed trait is dominant over the green seed trait. The F1 offspring all have yellow seeds because they inherit one yellow seed allele from the yellow-seeded parent and one from the green-seeded parent. The phenotype ratio of the F1 offspring is 100% yellow seeds. However, when you cross two F1 individuals, the resulting F2 offspring have a chance of inheriting two yellow alleles, one yellow and one green allele or two green alleles. The phenotypic ratio of the F2 generation would be 3:1, meaning that three-fourths of the offspring will have yellow seeds and one-fourth will have green seeds.