I am trying to  understand DNA/chromosome structure and replication. I have a culture dish of human cells (NIH3T3) and expose them to radioactively labeled Thymidine, 3H-thymidine, during S phase of the cell cycle.  How would my radioactivity be distributed over a pair of homologous chromosomes at metaphase?   If i have to draw How  the radioactivity  would be distributed over a pair of homologous chromosomes at metaphase, how will my drwing look like

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Viral Replication

The virus is acellular and considered non-living outside the host cell. The replication of the virus occurs only inside the living cells. Only a few genes are present in the smallest virus, whereas many genes are present in the largest virus. These genes encode specific viral proteins.