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What is the expected phenotypic and genotypic ratio in a classic Mendelian monohybrid cross ($Aa \times Aa$)?

デッキ「NEET UG High-Yield Review (Biology, Physics, Chemistry)」の単語カード。

解答

Phenotypic ratio: $3:1$ (dominant : recessive); Genotypic ratio: $1:2:1$ ($1\,AA : 2\,Aa : 1\,aa$).

解説

This segregation of alleles into gametes demonstrates Mendel's Law of Segregation, occurring during Anaphase I of meiosis.

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