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OJEE Mendelism — practice questions

Explore 2 free Mendelism questions in OJEE Biology. Open each question or exercise to read its content, reference answers and available explanation.

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Mendelism questions and exercises with answers

Showing questions 1–2 of 2.

Gregor Mendel performed his classic experiments on inheritance using:Read the answer and worked solution →How many pairs of contrasting characters in pea plant did Mendel study?Read the answer and worked solution →

Worked practice questions

Gregor Mendel performed his classic experiments on inheritance using:

  1. Drosophila melanogaster
  2. Garden pea (*Pisum sativum*)
  3. Mirabilis jalapa
  4. Zea mays
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Correct answer: B. Garden pea (*Pisum sativum*)

Mendel selected the garden pea because it had distinct, contrasting characters, was self-pollinating, easy to cross-pollinate manually, and short-generation. He studied **seven** pairs of contrasting traits.

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How many pairs of contrasting characters in pea plant did Mendel study?

  1. 3
  2. 5
  3. 7
  4. 9
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Correct answer: C. 7

Seven pairs — including seed shape (round/wrinkled), seed colour (yellow/green), pod shape, pod colour, flower colour, flower position and plant height.

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More Biology topics

Molecular Basis of InheritanceSexual Reproduction in Flowering PlantsHuman ReproductionCell Cycle and Cell DivisionPrinciples of Inheritance and VariationPrinciples Of InheritanceReproductive HealthHuman Health and Disease