Light. That's the chemical equation for photosynthesis
It's called your Petella, although I don't know if that's how it's spelled.
Globalized evolution...... but I might be wrong
During the S phase in the cell cycle, the chromosomes are replicated so that there are two copies. These copies are necessary so that each daughter cell created during the M phase will have an identical copy of the DNA.
Therefore, the answer is A: The DNA must be replicated.
The chromosomes joining, cell membrane expanding, and cytoplasm separating all happen during the M phase (mitosis).
