Evidence of the semiconservative nature of DNA replication came from
A) DNA staining techniques.
B) X-ray crystallography.
C) DNA sequencing.
D) density gradient studies using "heavy" nucleotides.
E) transfection experiments with bacteria.

Question

Quizplus · Accepted Answer

Density gradient studies using "heavy" nucleotides showed that after replication, one strand of the original DNA molecule was composed of heavy nucleotides, while the other strand was composed of light nucleotides. This suggests that each strand served as a template for the synthesis of a new strand, supporting the theory of semiconservative replication.

Evidence of the Semiconservative Nature of DNA Replication Came from