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MapHarr MapHarr
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7 years ago
Fragile sites are chromosome locations that
  A. show an increased number of chromosome bands.
  B. show a decreased number of chromosome bands.
  C. are all associated with a specific defective phenotype.
  D. indicate that carriers are mentally retarded.
  E. are inherited in a codominant fashion.

Question 2

A translocation involving chromosome 21 can result in
  A. a risk for Down syndrome independent of maternal age.
  B. a risk for Down syndrome dependent on paternal age.
  C. no increased risk outside of maternal age.
  D. lowering the risk of Down syndrome.
  E. no change in the risk for Down syndrome.
Textbook 
Human Heredity: Principles and Issues

Human Heredity: Principles and Issues


Edition: 10th
Author:
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Ashestreen22Ashestreen22
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MapHarr Author
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7 years ago
Genius!!!!!!
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