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

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

NTA AbhyasNTA Abhyas 2022

Solution:

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.