Here we learn how cells make a copy of their DNA
Conservation of the genetic code
When cells make copies of their DNA, the copying is almost exact.
However, a small number of mistakes may occur. We call this a mutation.
Why is DNA double-stranded?
Isn’t that a waste to have a gene written twice?
It It Would Would Like Like Be Be Writing Writing Each Each Word Word Twice Twice
Cells do this because it allows copies to be made exactly & quickly.
Basic idea
Step-by-step details
Looking at the base pairing, up close
Videos
This process is mind-bogglingly fast. This video shows the amazing speed at which this takes place:
Base pairing: DNA Learning Center
Replication: Mechanism of Replication (Basic) – DNA Learning Center
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