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DNA Replication

QuestionAnswer
What is DNA Replications? biological process that occurs in all living organisms and copies their DNA
What class of proteins are the molecules with -ase endings? sugar
What begins to happen on one of the "unzipped" strands? starts to curve, red circle and blue rectangle appear.
What does DNA replication begin with? "unzipping"
What are hydrogen bonds? Water molecules, weak
Why is DNA replication necessary? for cell reproduction prior to cell division
THe DNA helix is.. unwound
What does the leading strand do? Synthesis DNA synthesis progress in a 5 to 3 direction
What does the lagging strand do? synthesis occurs discontinuously because the DNA is exposed
What are the short DNA segments? Okazaki fragments.
What happens as the fork extends? process repeats, forming continuous strands.
When do lagging strands twist into helical forms the replication fork moves on.
What unwinds the DNA helix? Helicase.
What do single-stranded DNA binding protein prevents what? re-annealing of DNA strands.
DNA primase synthesizes what? short RNA primer
DNA polymerase III extends the RNA with DNA forming what? An Okazaki fragment
DNA polymerase I removes the RNA replacing it with what? DNA
Ligase joins what?? DNA fragments.
DNA Polymerase III core replication enzyme.
sliding clamp composed of two identical subunits.
single-strand DNA binding protein binds to single strand DNA
DNA Primase RNA polymerase that generates oligonucleotide.
LIgase Seals the nicks between newly synthesized okazaki fragments.
Dna produces short RNA primer
DNA Polymerase I uses exonucleus activity to remove RNA primer and its DNA polymerase
Created by: MalloryAycock
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