Dominant and recessive traits Knowledge-Based Practice

Biology · Heredity · Biology · Mendelian Genetics

1 Biology practice questions on Dominant and recessive traits. Questions that assess core concepts and understanding.

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Questions

  1. 1.

    In pea plants, the allele for purple flowers (PP) is dominant over the allele for white flowers (pp). What is the expected phenotypic distribution of the offspring produced from a cross between a heterozygous purple-flowered plant and a homozygous recessive white-flowered plant?

    • A) 100% purple flowers
    • B) 100% white flowers
    • C) 75% purple flowers and 25% white flowers
    • D) 50% purple flowers and 50% white flowers

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