Start learning →

The Meselson-Stahl experiment proved that DNA replication is

Aconservative
Bdiscontinuous on both strands
Csemi-conservative
Ddispersive
Answer & Solution
Correct answer: C. semi-conservative
After one round of replication in ¹⁴N medium, all DNA molecules from ¹⁵N-labelled E. coli had a single intermediate density. That's only possible if each daughter contains one parental strand and one new strand — the semi-conservative model.
Practise this question with Quill — AP Intermediate 2nd Year →

Keep practising Genetics and Evolution

Browse all Genetics and Evolution questions for AP Intermediate 2nd Year, or explore more Biology topics.

Start a Genetics and Evolution lesson →