Molecular Basis of InheritanceHard

Question

During replication of DNA, its two strands separate. Each of these serves as . a template for the formation of new strands. Such type of replication is called

Options

A.non-conservative
B.semi-conservative
C.flexible
D.conservative

Solution

Since each daughter DNA molecule contains one strand of the parent DNA double helix (only one strand synthesized afresh) the process of replication is called semi-conservatiove.
Mathew Meselson and Franklin Stahl in 1958 proved experimentally that DNA replication is esmi-conservative. To prove it they used N15 heavy DNA in a medium containing N14 isotope.

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