biol 101 chapter 16 KD
Terms
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copy deck
- short stretches of DNA having a specific sequence of nucleotides; where the parental strands separate to for, replication bubbles
- origin(s) of replication
- a region where the parental DNA strands are being unwound
- replication fork
- enzymes that untwist the double helix at replication forks-separates the parental strands
- helicases
- _________ binds to unpaired DNA strands, holding the in place after separation
- single-strand binding proteins
- relieves the strain ahead of the replication fork caused by the untwisting of the double helix; breaks, swivels, and rejoins DNA strands
- topoisomerase
- a short stretch of RNA with a free 3 prime end, bound by complementary base pairing to the template strand, that is elongated with DNA nucleotides during DNA replication
- primer
- synthesizes RNA primers, using the parental DNA as a template
- Primase
- catalyze the synthesis of new DNA by adding nucleotides to a preexisting chain
- DNA polymerase