Build a DNA molecule or DNA replication

DNA is copied or replicated during preparation for cell division, either mitosis or meiosis. The bases are paired as follows: adenine with thymine, cytosine with guanine. To build a model of the DNA, click this link:
Build a DNA Molecule

Click on DNA replication

THINK:

Any error that occurs during DNA replication is called __________ ?

Why must the DNA replicate?

Where do you find DNA inside the cell?

Click this link and answer question # 10 Problem # 10