In Their Famous Experiment, Which of the Following Would Meselson

Multiple Choice

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.