DNA Replication. Why is DNA Replication needed?. When cells are dividing… During Interphase of Mitosis & Meiosis DNA must be copied so that each new cell has a full copy of the DNA Either to GROW or make gametes. Starting DNA Replication.
DNA holds all of the instructions for what proteins to make and when to make them
1. DNA is composed of segments called GENES
a. each gene codes for a protein
b. proteins make you who you are