Topic:%20DNA%20replication%20Objective:%20DNA%20replication%20is%20when%20DNA%20is%20copied.

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Topic DNA replicationObjective DNA
replication is when DNA is copied.
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Replication copies the genetic information.

• A single strand of DNA serves as a template for a
  new strand.
• General Description
• DNA is replicated during theS (synthesis)
  stage during
• Interphase of thecell cycle..IS COPIED

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LETS IDENTIFY THE STRUCTURES ON THE RIGHT FIRST

1. PHOSPHATE AND SUGAR BACKBONE
2. BASES
3. FREE FLOATING BASES WITH ENZYME
4. NEW STRAND OF DNA

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Proteins carry out the process of replication.

• Process
• 1. Enzyme is called HELICASE unzips the double
  helix
• 2. Free-floating bases pair with the exposed
  bases that have been unzipped

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3. Another enzyme, DNA polymerase, bond the
nucleotides together to form the double helix
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• 4. END RESULT
• Two new molecules of DNA are formed

• Original is blue, new is orange.

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DNA REPLICATION EXAMPLE

• DS DNA DNA UNZIPPED REPLICATED DNA
• A-T A- -T A-T A-T
• T-A T- -A T-A T-A
• C-G C- -G C-G C-G
• G-C G- -C G-C G-C
• A-T A- -T A-T A-T
• ORIGINAL STRAND HELICASE UNZIPS, NEED NEW
  BASES DNA POLYMERASE BONDS
  NEW NUCLEOTIDES TOGETHER

C T G A
T A
T G C C