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Polygenic inheritance Knowledge-Based Practice

Biology · Heredity · Biology · Non-Mendelian Genetics

1 Biology practice questions on Polygenic inheritance. Questions that assess core concepts and understanding.

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Questions

  1. 1.

    Which statement correctly characterizes polygenic inheritance in organisms?

    • A) A single gene affects multiple unrelated phenotypic traits simultaneously.
    • B) Two different alleles at the same locus are expressed equally in heterozygous individuals.
    • C) One gene at a specific locus masks or alters the phenotypic expression of a separate gene.
    • D) Multiple independent genes exert an additive effect on the expression of a single continuous phenotypic trait.

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