Problem Set 4 - Genetics 380 : Spring, 2011 Take-Home...

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Take-Home Problem Set #4 1. Saccharomyces (baker’s yeast) produces unordered tetrads. A cross was made between val glu his x + + + Meiosis was induced in the resulting diploid and the tetrads were analyzed. The results are shown below- Determine the gene order and map distances between the 3 genes. 2. The genes a, b, and c are on the same chromosome arm in Neurospora . The following ordered asci (tetrads) were obtained from the cross- a b + x + + c Make a genetic map showing all 3 gene-gene and gene-centromere distances. Genetics 380 : Spring, 2011 (Due the week of 2/14)
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Chapter 6 Q. 3. Suppose E. coli cells are grown for many generations in normal light (N 14 ) medium. They are quickly shifted to a (N 15 ) heavy medium. The DNA is extracted from the bacteria at 0, 1, 2 or 3 generations after the shift to a heavy medium. The extracted DNA is subjected to equilibrium centrifugation in CsCl density gradients. Draw the densitometric scans of the 4 DNA samples (0, 1, 2 or 3 generations in N
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This note was uploaded on 09/29/2011 for the course GENETICS 380 taught by Professor Glodowski during the Spring '08 term at Rutgers.

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Problem Set 4 - Genetics 380 : Spring, 2011 Take-Home...

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