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Chapter 14 MENDEL AND THE GENE IDEA

Chapter 14 MENDEL AND THE GENE IDEA . 1. Who were the two strong influences on Mendel’s education?. Doppler (physicist) Unger (botanist) What about Mendel’s monastery made it an ideal place to investigate genetics?. Why is the pea an ideal specimen for genetic studies?.

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Chapter 14 MENDEL AND THE GENE IDEA

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  1. Chapter 14MENDEL AND THE GENE IDEA

  2. 1. Who were the two strong influences on Mendel’s education? • Doppler (physicist) • Unger (botanist) • What about Mendel’s monastery made it an ideal place to investigate genetics?

  3. Why is the pea an ideal specimen for genetic studies?

  4. 3. In your own words, what is Mendel’s Law of Segregation?

  5. 4. Give an example of a monohybrid cross & dihybrid cross • Determine seed phenotypes & their probabilities: • hybrid yellow X green • dihybrid yellow/round X green/wrinkled • Hetero yellow/wrinkled X green/hetero round • What is a “test cross”?

  6. 1. What is the Law of Independent Assortment and how does this “law” relate to meiosis? • Write your own example for the law of independent assortment.

  7. 7. Define and then explain in your own words both the Rules of Multiplication and the Rules of Addition.

  8. Practice • PpYyRr X PpYyRr • Determine probabilities for the following: • ppyyRr • ppYyrr • Ppyyrr • PPyyrr • Ppyyrr

  9. 8. Contrast codominance and incomplete dominance • Why doesn’t incomplete dominance support the blending hypothesis? • How can Tay-Sachs disease be considered incomplete dominance? codominant? • 9. Does having a dominant allele mean that it will be found in greater frequency in the population?

  10. 11. What are multiple alleles?

  11. 12. What does the term Pleiotropy mean?

  12. 13. In your own words, explain epistasis.

  13. 14. What would be your “clue”that a character would have polygenic inheritance pattern?

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