BIS101 HW9 F08 Key Engebrecht

BIS101 HW9 F08 Key Engebrecht - BIS101/Engebrecht Homework...

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BIS101/Engebrecht Homework 9 Chapter 15 #3. How would you select revertants of the yeast allele pro-1 ? This allele confers an inability to synthesize the amino acid proline, which can be synthesized by wild-type yeast and which is necessary for growth. Plate cells on medium lacking proline. Only those cells that are able to synthesize proline will grow. Most will be revertants (exactly back to wild type) but a few may be extrageneic suppressors. #10. A man employed for several years in a nuclear power plant becomes the father of a hemophiliac boy. There is no hemophilia in the extensive pedigrees of the man’s ancestors and this wife’s ancestors. Another man, also employed for several years in the same plant has an achondroplastic dwarf child—a condition nowhere recorded in his ancestry or in that of his wife. Both men sue their employer for damages. As a geneticist, you are asked to testify in court. What do you say about each situation? (Note:
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BIS101 HW9 F08 Key Engebrecht - BIS101/Engebrecht Homework...

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