Question

In which phase of the cell cycle does replication occur in Eukaryotes ? What would happen if cell - division is not followed after DNA replication ?

Answer 1

S-phase. 

Polyploidy

Detailed answer:

DNA replication takes place in S-phase (Synthetic phase) of cell cycle in eukaryotes. If this replication of DNA is not followed by cell division the DNA contents of the cell will get doubled i.e., duplicate set of DNA will be formed. This will result in autopolyploidy.