DNA replication Flashcards
Semiconservative replication
a mechanism of DNA replication, each of the two strands of parent DNA is incorporated into new double-stranded DNA molecule
replication origin
specific sequence of DNA, acts as starting point for replication
helicase
replication enzyme, separates and unwinds DNA helix
replication fork
point of separation of two parent DNA strands during replication
topoisomerases
class of enzymes that relieve tension caused by unwinding of parent DNA
single-strand binding protein
replication enzyme that prevents parent DNA strands from annealing to eachother
replication bubble
seperating of DNA in both directions during replication
nucleoside triphosphate
building block and energy source for replicating DNA
RNA primase
replication enzyme that produces RNA primers on template strands
RNA primer
replication molecule that acts as a starting point for replication
DNA polymerase III
prokaryotic replication enzyme that build new DNA strands from nucleotides
leading strand
DNA strand that is copied in direction towards replication fork
lagging strand
DNA strand copied in direction away from replication fork
Okazaki fragment
piece of new DNA on the lagging strand
DNA polymerase I
prokaryotic replication enzyme that fills in gaps in the lagging strand between Okazaki fragments
