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14 Cards in this Set
- Front
- Back
Is DNA synthesized 5'->3' or 3'->5'? |
5'->3' |
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What enzyme peels apart the 2 strands of DNA? |
Helicase |
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Where does helicase attach on strands of DNA? |
Specific sequences called Origins of Replication |
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What is SSB and what does it do? |
Single strand DNA binding protein. It keeps the hydrogen bond from re-forming between the base pairs after Helicase has separated them. |
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What is the junction where the 2 strand have yet to be peeled apart called? |
The Replication Fork |
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DNA polymerase 3 does what? |
Creates the new DNA strands in a 5'->3' direction |
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What direction does the leading strand follow? |
5'->3' |
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What are Okazaki fragments? |
Fragments of complimentary DNA. |
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What does DNA polymerase 1 do? |
Replaces the RNA primers with the appropriate nucleotides. |
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What does DNA ligase do? |
Fuses together the Okazaki fragments |
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What does "DNA repair" consist of? |
DNA polymerase 1 and 3 check over the DNA strands, cut out and replace the wrong ones, and finalize the molecule |
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Where is RNA found? |
Nucleus, cytoplasm, and ribsomes |
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Why is RNA necessary? |
It is transcribed from DNA to produce new proteins for cell function. |
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Why is DNA semi-conservative? |
It retains one of its original strands of DNA in it reproduced one. |