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CSU BIOL 3216 Chapter 9
Genetics
7
Biology
Undergraduate 3
10/03/2010

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Term
DNA ligase
Definition
An enzyme that can rejoin a broken phosphodiester bond in a DNA molecule.
Term
DNA polymerase
Definition
The major enzyme of DNA replication that actually reads the template and incorporates nucleotides one at a time on the growing strand.
Term
Okazaki fragments
Definition
Short, unconnected stretches of newly replicated DNA on the lagging strand.
Term
Replication
Definition
Process by which DNA is duplicated, allowing for inheritance of genetic information.
Term
Replication fork
Definition
The point of separation of two strands of DNA during replication where DNA synthesis is occurring.
Term
Semiconservative replication
Definition
Model of replication in which each daughter DNA molecule includes an intact old strand along with a newly synthesized strand.
Term
Telomerase
Definition
An enzyme that adds a short sequence of nucleotides to the tips of chromosome to restore their ends after DNA replication.
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