The fourth has blond hair, too, but she has brown eyes. Explain how the principle of independent segregation accounts for these sisters having four different phenotypes for two traits.
Answer: The way that the principle of independent segregation accounts for these sisters having four different phenotypes for two traits is that if If their parents are heterozygous for both traits, the genes and alleles segregate independently, resulting in all possible phenotypic combinations: dominant-dominant, dominant-recessive, recessive-dominant, and recessive-recessive.
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