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DNA Replication-Bozemanbiology-Noah A
DNA Replication
20
Biology
10th Grade
04/16/2012

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Term
DNA Replication
Definition
The process of making one strand of DNA into two. Happens during the S phase of Interphase
Term
semiconservative replication
Definition
After DNA replication, each doubled stranded molecule of DNA contains one original strand
Term
helicase
Definition
Uniwinds the DNA strand
Term
single stranded binding proteins
Definition
attach to each strand of the uncoiled DNA to keep them apart
Term
DNA Polymerase
Definition
Runs from the 3' to the 5' assembling a new strand
Term
Leading strand
Definition
3' -> 5', assembles simply
Term
Lagging strand
Definition
5' -> 3', requires "back stitching" to replicate
Term
Okasaki segments
Definition
short segments caused by the backstitching on the lagging strand
Term
DNA Ligase
Definition
connects the Okasaki Fragments
Term
RNA Primase
Definition
initiates each complementary with a strand of RNA Primer
Term
RNA Primer
Definition
Segment of RNA put down by RNA Primase to initiate complementary segment
Term
3'
Definition
The third carbon, nucleotides can't be binded to it
Term
5'
Definition
The fifth carbon, able to have new nucleotide binded to it
Term
S Phase
Definition
The phase in Interphase where DNA replicates
Term
topoisomerase
Definition
Breaks and rejoins the double helix, allowing twists to unravel and preventing the formation of knots
Term
Replication fork
Definition
The y shaped fork caused during replication
Term
DNA
Definition
Deoxyribonucleaic acid, double helix which contains the heredity information
Term
Mitosis
Definition
The division of a diploid cell to make two diploid cells
Term
nucleotides
Definition
contains three parts: nitrogenous base, sugar, phosphate group
Term
complementary strand
Definition
the strand of DNA being added to the original strand
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