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Home Q & A Board Biology-Related Homework Help Biochemistry
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98lindsey 98lindsey
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6 years ago
A student grows E. coli with 15NH4Cl for many generations so that 15N is incorporated into most purines and pyrimidines. The student then adds an excess of 14 NH4Cl and grows the cells for 2 generations. The DNA is isolated from the cells and analyzed by CsCl centrifugation. What results should the student expect to see?
 a. 1 band of DNA
  b. 1 faint band of DNA and 1 strong band of DNA
  c. 2 bands of equal intensity
  d. 3 bands of equal intensity
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winger785winger785
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98lindsey Author
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6 years ago
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