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NEET-UG Biology

How Mendel set up his pea experiments — practice questions

4 questions in the bank on this idea. Below are 4 of them, exactly as they appear in a test.

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  1. Question 1 · difficulty L1 · recall

    The cross used to reveal the genotype of an individual showing a dominant phenotype:

    • A. test cross
    • B. back cross only
    • C. dihybrid cross
    • D. selfing only
  2. Question 2 · difficulty L1 · recall

    Why was garden pea especially suitable for Mendel's inheritance experiments?

    • A. Clear contrasting traits and controllable pollination
    • B. It reproduced only asexually
    • C. It had no visible variation
    • D. Its generation time was extremely long
  3. Question 3 · difficulty L2 · understanding

    The law stating that the two alleles of a gene separate during gamete formation:

    • A. law of segregation
    • B. law of independent assortment
    • C. Hardy-Weinberg principle
    • D. law of dominance
  4. Question 4 · difficulty L2 · understanding

    Why did Mendel use true-breeding parental lines in his crosses?

    • A. They prevented meiosis
    • B. They always produced heterozygous offspring
    • C. They produced stable trait forms across generations before crossing
    • D. They ensured every offspring was genetically identical after the cross

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