Question

In eukaryotic cells what happens in the g1 phase that differs from the g2 phase

Answer 1

Cytoplasm is Manufactured, if that's what you're looking for.

Answer 2

In the g1 phase, the time just after birth when the cell is preparing for DNA synthesis and grows. After this in g2 phase the cell goes through a transition or quality check where the integrity of the DNA is checked and prepares for mitosis.