Mendel's Experiments and Pleiotropy
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Questions and Answers

In Mendel's experiments, why did a cross between two heterozygous yellow mice produce yellow and brown mice in a ratio of 2:1 instead of the expected 3:1?

  • Pleiotropy
  • Dominance
  • Mutation
  • Lethality (correct)
  • What was observed to be always correlated with the flower colors in Mendel’s experiments with purple-flowered and white-flowered plants?

  • Stem length
  • Root structure
  • Seed coat color and axil color (correct)
  • Leaf shape
  • What is the term for one gene affecting multiple characteristics?

  • Pleiotropy (correct)
  • Heterozygous
  • Mutation
  • Lethality
  • What is the term for a genetic disorder caused by a mutation in one gene, yet it affects many aspects of growth and development?

    <p>Pleiotropy</p> Signup and view all the answers

    In Mendel's experiments, what is the term for the situation where a cross between two heterozygous yellow mice produces yellow and brown mice in a ratio of 2:1 instead of the expected 3:1?

    <p>Lethality</p> Signup and view all the answers

    What type of inheritance is characterized by a cross between two heterozygous yellow mice producing yellow and brown mice in a ratio of 2:1?

    <p>Pleiotropy</p> Signup and view all the answers

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