Download 8-4 Reading Guide

Kurowski/Biology
Name:
Genetics: Polar Bear Book
8-4 Reading Guide
1. Most Traits are Not Controlled by Simple
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2. When several genes influence a trait, the trait is
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3. Give two examples of polygenic traits:
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4. Give an example of incomplete dominance:
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5. Give an example of codominance:
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6. Explain the difference between incomplete
dominance & codominance.
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7. What is a multiple allele:
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Give an example:
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8. What are the four blood types possible in humans:
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9. How does the color of hydrangea depend on the
environment?
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10. How does the fur color of Siamese cats depend on
the environment?
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11. What human trait is influenced by environment?
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12. Some Traits Are Caused by
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13. Why are most bald people men?
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Period:
14. What is a mutation?
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15. Sketch the shape of blood cells
of people that have sickle cell anemia
and normal blood cells.
16. Why does the shape of the blood cell cause
problems?
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17. What advantage do people with the heterozygous
condition for sickle cell anemia have?
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18. What is hemophilia?
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19. What are the symptoms of Huntington's disease?
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20. What is genetic counseling?
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21. What would happen to a baby if PKU was not
diagnosed early?
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22. What is gene therapy?
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23. What are the symptoms of cystic fibrosis? (see
Table 8-2)
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24. What are the symptoms of Tay-Sachs disease (see
Table 8-2)
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25. See Health Watch: Genetic Counseling
What kind of people may want to see a genetic
counselor?
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26. What procedures do genetic counselors perform?
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