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Biology Chapter 16 Terms
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Origins of Replication
Special sites where DNA replication begins
Replication Forks
Forks formed when DNA splits when replication origin is discovered
Replication Bubble
----<>-----<>----- (two replication bubbles there)
Helicase
Enzyme that catalyze the Unwinding + Flattening of the DNA half-strands
Single Stranded Binded Protein
Protein that KEEPS STRANDS APART so that replication can be carried out
DNA Polymerase
Enzyme that catalyzes the building of DNA
It pulls in + attaches nucleotides to carry out replication
Nucleotide Triphospahte
DNA Nucleotide w/ extra bonded Phospherous with Phosphate bonds
It provides energy to drive process of building new DNA strands
Antiparallel
When 2 DNA half-strands run in opposite directions
ALWAYS 5' -> 3'
Leading Strand
Synthesized continuosly, first
Lagging Strand
Synthesized in fragment, second
Okazaki Fragments
Small pieces of DNA that are produced on the lagging strand to complete it
DNA Ligase
LINKING ENZYME that pastes together spaces inbetween Okazaki Fragments with Covalent Bonds on phosphate-sugar level
Primer
A short RNA segment that is complimentary to DNA replication and template
Primers are replaced with ___ ___________
DNA Nucleotides
____ Primer(s) is needed for the leading strand
1
____ Primer(s) is needed for the lagging strand
Many
Primase
ENZYME that makes RNA Primers
(ase=enzyme)
Mismatch Repair
A DNA Replication proofreading mechanism that corrects mistakes AS DNA IS MADE
Excision Repair
A DNA Replication proofreading mechanism that CORRECTS MISTAKES IN EXISTING STRANDS
Summary of DNA Replication Process
1. Strand Separation
2. Synthesis of new DNA strands
3. Attachment + Proofreading
Author
Anonymous
ID
3109
Card Set
Biology Chapter 16 Terms
Description
Biology flash cards for ap chapter 16
Updated
2009-12-15T04:25:06Z
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