Study Guide: Non-Mendelian Genetics

Study Questions

Objective: Describe inheritance patterns that do not follow Mendelian patterns.

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Vocabulary

  1. Epistasis
  2. Pleiotropy
  3. Polygenic inheritance
  4. Penetrance
  5. Incomplete dominance
  6. Codominance
  7. Epigenetics

Study Guide Questions

  1. What is incomplete dominance?  How does this affect the phenotypic ratios of the offspring in various crosses?
  2. Give an example of incomplete dominance.
  3. What is co-dominance?  How does this affect the expected phenotypic ratios of the offspring in various crosses?
  4. Give an example of co-dominance.
  5. Understand the genetics of blood types.
  6. What is penetrance?  How does this affect the expected phenotypic ratios of the offspring in various crosses?
  7. What is epigenetics?  What significance does this have in the study of inheritance?
  8. Compare and contrast all of the following situations, and give an example of each:
    1. Multiple alleles
    2. polygenic inheritance
    3. epistasis
    4. pleiotropy
    5. the effect of the environment on phenotype