DNA is composed of four nucleosides: adenosine,cytidine,thymidine,and guanosine.If scientists introduced radioactive thymidine into the growth medium of the cells,it would be incorporated into the DNA molecule
A)at any point in the cell cycle.
B)when centromeres split so the two chromosomes can be separated.
C)during DNA replication.
D)as the cell enters G₁ of interphase.

Question

Quizplus · Accepted Answer

Radioactive thymidine would be incorporated into the DNA molecule during DNA replication, when new DNA strands are synthesized using existing strands as templates. This occurs during the S-phase of interphase in the cell cycle.

DNA Is Composed of Four Nucleosides: Adenosine,cytidine,thymidine,and Guanosine