DNA REPLICATION
The Process:
- DNA strands run anti-parallel to one another
- Enzyme helicase unzips the double helix and the hydrogen bonds between bases break
- Free nucleotides line up with their complimentary bases and hydrogen bonds form
- DNA polymerase allows the free nucleotides to attach to their complimentary bases
- A complimentary strand has been formed for either template strand
- Any fragments in the double helix are joined by ligase
- There are now two identical DNA molecules formed – each with a daughter and parent strand
Meselson and Stahl Experiment – Density Centrifugation Gradient
