to make off spring
Both occur at the Replication Fork. Don't let the name deceive you.
DNA Helicase unwinds and unzips the DNA. It separates the two strands of DNA so DNA replication can occur.
In the nucleus
maybe
Nucleus.
The Replication of DNA does occur before the cell can divide.
Chromosomal replication and DNA replication takes place in S-phase.
Telophase is a phase of mitosis. DNA replication must occur before mitosis begins. If it does not then the DNA chromosomes may not be consistent throughout the division of the cells.
It occurs in metaphase.
The Nucleus
errors in DNA replication
nucleus