MDCAT Biology MCQ #4554

In a test cross, what is the purpose of crossing an individual with a homozygous recessive individual?

MDCAT Biology MCQ #4554

  1. Question 1

    Q1. In a test cross, what is the purpose of crossing an individual with a homozygous recessive individual?

    • A) To determine the genotype of the individual
    • B) To determine the phenotype of the individual
    • C) To introduce new genetic variation
    • D) To increase the fitness of the individual

    Answer: To determine the genotype of the individual

    Explanation: Test cross determines genotype, option B is incorrect because phenotype is already known.