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Chapter 6 Cell Funct

Exam II

TermDefinition
DNA Replication The process by which a copy of a DNA molecule is made.
lagging strand One of the two newly made strands of DNA found at a replication fork. The lagging strand is made in discontinuous lengths that are later joined covalently.
leading strand One of the two newly made strands of DNA found at a replication fork. The leading strand is made by continuous synthesis in the 5'-3' direction.
Okazaki fragments Short length of DNA produced on the lagging strand during DNA replication. These fragments are rapidly joined together by DNA ligase to form a continuous DNA strand.
replication fork Y-shaped region of a replicating DNA molecule at which the two daughter strands are formed and separate.
DNA polymerase General term (polymerase) for an enzyme that catalyzes addition of subunits to a polymer. DNA polymerase, for example, makes DNA and RNA polymerase make RNA.
DNA ligase Enzyme that joins two adjacent DNA strands together.
telomerase Enzyme that elongates telomeres, the repetitive nucleotide sequences found at the ends of eucaryotic chromosomes.
Created by: jcamillo
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