In their famous experiment, which of the following would Meselson and Stahl have observed after one cycle of replication in ¹⁴N medium if DNA replication was conservative? A)DNA molecules containing one strand of ¹⁵N-DNA and one strand of ¹⁴N-DNA B)DNA molecules containing two ¹⁵N-DNA strands only C)DNA molecules containing two ¹⁴N-DNA strands only D)An equal number of DNA molecules containing two ¹⁵N-DNA strands and DNA molecules containing two ¹⁴N-DNA strands. E)A mix of DNA molecules corresponding to A and B.

Question

Quizplus · Accepted Answer

In conservative replication, the original DNA molecule remains intact, and a completely new molecule is synthesized. After one cycle in ¹⁴N medium, there would be original DNA with two ¹⁵N strands and new DNA with two ¹⁴N strands.

In Their Famous Experiment, Which of the Following Would Meselson