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Mendel and the basics of heredity

This classroom material helps 9th-grade students practice understanding Mendel’s pea experiments, alleles, and heredity by answering multiple-choice questions, filling in Punnett square ratios, and sequencing experiment steps to reinforce key concepts.

By Edform · Biology · Grade 9 · Published Oct 15, 2026 · New

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Questions

  1. In Mendel's experiments with pea plants, which trait would appear in the F1 generation if he crossed a plant with round seeds (dominant) and a plant with wrinkled seeds (recessive)?
  2. Which of the following statements about alleles and traits are correct?
  3. Fill in the blanks: In a Punnett square, a cross between two heterozygous pea plants (Rr x Rr) for seed shape will result in a _ : _ ratio of round to wrinkled seeds in the offspring.
  4. Put the steps of Mendel's pea plant experiment in the correct order.
  5. Decide if each statement about Punnett squares is true or false.

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