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Chapter 16 - Coggle Diagram
Chapter 16
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The Basic principle:
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Each chain of a double helix replicates, each of the two daughter molecules will have one old strand, from the parental molecule, and one newly made strand .
This semiconservative model can be distinguished from a conservative model of replication, in which the two parental strands somehow come back together after the process.
DNA replication
The replication of a DNA molecule begins at particular sites called origins of replication, short stretches of DNA having a specific sequence of nucleotides.
Proteins that initiate DNA replication recognize a sequence and attach to the DNa, separating the two strands and opening up a replication "bubble"
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Helicases are enzymes that untwist the double helix at the replication forks, separating the two parental strands and making them available as template strands.
After the parental strands separate, single- strand binding proteins bind to the unpaired DNA strands, keeping them from re-pairing
