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Problem:

In the Meselson-Stahl experiment, 15N-labeled cells were shifted to 14N medium at what is designated as generation 0. In subsequent divisions DNA molecules can result that are N15-N15, N15-N14 or N14-N14.

Required:

Question: For the conservative model of replication, what proportion of 14N-14N would you expect to find after one replication cycle? Show your calculations, but you do not need to write out any explanation.

Question: what would you expect after three replication cycles? Explain thoroughly.

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Biology, Academics

Category:- Biology
Reference No.:- M91164977

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