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Unit 3 Part 2 - Ch 16: Molecular Basis of Inheritance
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Question:
Origins of replication
Author: AMRIT KAURAnswer:
- Replication begins at particular sites called origins of replication - At these sites, two DNA strands are separated, opening up a replication “bubble” - A eukaryotic chromosome may have a lottttt of these origins of replication - Replication proceeds in both directions from each origin, until the entire molecule is copied [see image - note: the shape of DNA in bacteria cells is circular]
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