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Questions and Answers
The Meselson-Stahl experiment demonstrated that DNA
replication produces two DNA molecules each composed
of:
The Meselson-Stahl experiment demonstrated that DNA replication produces two DNA molecules each composed of:
- A. two old strands
- two new strands
- one old and one new strand. (correct)
- two strands with variable proportions of new and old DNA
In the Meselson-Stahl DNA replication experiment, what
percent of the DNA was composed of one light strand and
one heavy strand after one generation of growth in N-14
containing growth media?
In the Meselson-Stahl DNA replication experiment, what percent of the DNA was composed of one light strand and one heavy strand after one generation of growth in N-14 containing growth media?
- 0
- 25
- 50
- 100 (correct)
What data would Meselson and Stahl have expected if DNA replication was
conservative, rather than semiconservative?
What data would Meselson and Stahl have expected if DNA replication was conservative, rather than semiconservative?
- . In the first generation, there would be a single band of intermediate density. In the second generation there would be two bands, one of medium density and one of light density.
- In the first generation, there would be a single band of intermediate density. In the second generation there would be two bands, one of light density and one of heavy density.
- In the first generation, there would be two bands, one of light density and one of heavy density. In the second generation there would still be two bands, one of light density and one of heavy density
- . In the first generation, there would be one band of heavy density. In the second generation there would be one band of light density. (correct)
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