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bio: DNA replication

key enzymes/proteins

QuestionAnswer
helicase unwinds parental double helix, unzips down center (starts at sections with A-T's because they have fewer bonds and are broken more easily
binding proteins stabilize separated strands, prevents DNA from rezipping (not an enzyme)
primase adds short RNA primer strand to template/parental strand
DNA polymerase adds DNA nucleotides to build polymer
exonuclease removes RNA primer and inserts correct DNA nucleotides
ligase joins Okazaki fragments and seals nicks in sugar-phosphate backbone
quirks of DNA polymerase: can only add nucleotides of 3-prime end of growing strand), can only add FIRST to RNA
Created by: spanish3h
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