2.2-DNA replication

Question 1

Why is DNA replicated before the nucleus divides?

Answer 1

To ensure that all the daughter cells have the genetic information to produce enzymes and other proteins that they need

Question 2

Describe the process of semi-conservative DNA replication

Answer 2

1. DNA helicase breaks hydrogen bonds between base pairs, separating the double helix into two strands
2. Each strand acts as template whereby complementary free nucleotides bind by specific base pairing
3. Nucleotides are joined together in a condensation reaction by DNA polymerase