Home
Class 12
BIOLOGY
Radioactive thymidine when added to the ...

Radioactive thymidine when added to the medium surrounding living mammalian cells gets incorporated into the newly synthesised DNA. Which of the following types of chromatin is expected to become radioactive if cells are exposed radioactive thymidine as soon as they enter the S-phase?

A

Both the strands of DNA will be radioactive

B

One strand radioactive

C

Each strand half radioactive

D

None is radioactive

Text Solution

Verified by Experts

The correct Answer is:
B

Since , DNA replication is semiconservative , the newly synthesised strand of DNA would ne normal while the strand obtained from parent molecule would be radioactive . In the given expreiment
Promotional Banner

Similar Questions

Explore conceptually related problems

If green plant cells are incubated with O^(18) labelled CO_(2) . Which of the following molecules will become radioactive when the cells are exposed to light?

If green plant cells are incubated with O^(18) - labelled water, which of the following molecuels will become radioactive when the cells are exposed to light?

In S–phase, DNA is replicated in a medium containing radioactive thymidine, radioactivity will be observed in :

If radioactive thymidine is used during S-phase of interphase, which part of the chromosome will become radioactive?

An animal cell was grown in a culture medium containing P^(32) nucleotides, the parts from which DNA is built. Later examination of the cell showed the radioactivity to be concentrated in the

If a probe is made of radioactively labelled dsDNA and is allowed to hybridise to its complementary DNA in a cloned cell followed by detection using autoradiography. Which of the following is considered wrong for the given statements?