Question

Origins of DNA replication can be visualized by an experimental technique that involves

a. the labeling cells with radioactive thymine and carrying out autoradiography

b. the labeling cells with radioactive methionine and carrying out autoradiography

c. the labeling cells with radioactive cytosine and carrying out autoradiography

d. the labeling cells with radioactive carbon and carrying out autoradiography

Answer 1

The origins of DNA replication can be visualized using autoradiography, which involves labeling cells with a radioactive nucleotide and capturing the radiation emitted by the nucleotide. The correct option for visualizing DNA replication is labeling cells with radioactive thymine and carrying out autoradiography.

Step-by-step explanation:

The origins of DNA replication can be visualized using an experimental technique called autoradiography. This technique involves labeling cells with a radioactive nucleotide and then using a sensitive film to capture the radiation emitted by the radioactive nucleotide. By examining the resulting autoradiograph, scientists can track the replication of DNA.

Option (a) is the correct answer: the labeling cells with radioactive thymine and carrying out autoradiography.