In a famous experiment, Matthew Meselson and Franklin Stahl grew E. coli cells in a medium containing only the "heavy" isotope of nitrogen, 15 N. These cells were then transferred to a medium with the "light" isotope of nitrogen, 14 N. The results of the experiment supported the hypothesis of semiconservative replication, which was proposed by Watson and Crick. Heavy DNA (15 N DNA), hybrid DNA, and light DNA (14 N DNA) can be separated by centrifugation. If cells containing 15 N DNA are transferred to a medium with only 14 N NH 4 Cl as a nitrogen source, what percent of daughter molecules are composed of hybrid DNA after 3 generations?
+4
Answers (1)
Know the Answer?
Not Sure About the Answer?
Find an answer to your question 👍 “In a famous experiment, Matthew Meselson and Franklin Stahl grew E. coli cells in a medium containing only the "heavy" isotope of nitrogen, ...” in 📗 Biology if the answers seem to be not correct or there’s no answer. Try a smart search to find answers to similar questions.
Home » Biology » In a famous experiment, Matthew Meselson and Franklin Stahl grew E. coli cells in a medium containing only the "heavy" isotope of nitrogen, 15 N. These cells were then transferred to a medium with the "light" isotope of nitrogen, 14 N.