2.3.3- DNA replication
- Created by: Billie2503
- Created on: 12-01-20 16:32
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Why does DNA replicate?
- dna is copied before cell division
- new cell has the full amount of DNA
- important so each generation has the genetic information
How is DNA replicated:
a dna molecule has a paired base structure which makes it easy for DNA to copy itself
1. DNA helicase breaks the hydrogen bonds between the 2 strands. the helix unzips into 2 single strands
2. each original strand acts as a template for a new strand. free nucleotides join the exposed bases on…
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