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

Question

If radioactive thymidine is used during S-phase of interphase, which part of the chromosome will become radioactive? (A) Near the centromere (B) At both end of chromosome (C) Euchromatin region (D) Both euchromatin and heterochromatin region

Tardigrade Admin · Accepted Answer

The replication of genetic material during cell division takes place in S-phase. The complete genetic material is replication thus euchromatin as well as heterochromatin both are replicated. Though euchromatin replicates in the early S-phase while heterochromatin replicates in the late S-phase.

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

Near the centromere

At both end of chromosome

Euchromatin region

Both euchromatin and heterochromatin region

The replication of genetic material during cell division takes place in S-phase. The complete genetic material is replication thus euchromatin as well as heterochromatin both are replicated. Though euchromatin replicates in the early S-phase while heterochromatin replicates in the late S-phase.