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Genetics

Extra Final

QuestionAnswer
Initiator protein binds to origin and separates strands of DNA to initiate replication
DNA helicase unwinds DNA at replication fork
Single-strand-binding-proteins attach to single-stranded DNA and precent secondary structures from forming
DNA gyrase moves ahead of the replication fork making and resealing breaks in the double helical DNA to release the torque that builds up as a result of unwinding at the replication fork
DNA primase Synthesizes a short RNA primer to provide a 3 OH group for the attachment of DNA nucleotides
DNA polymerase III elongates a new nucleotide strand from the 3 OH group provided by the primer
DNA polymerase I removes RNA promers and replaces them with DNA
DNA ligase backbone joins okazaki fragments by sealing nicks in the sugar phosphate of newly synthesized DNA
RNA polymerase I large rRNAs
RNA polymerase II pre mRNA some snRNAs snoRNAs some miRNAs
RNA polymerase III tRNAs small rRNAs some snRNAs some miRNAs
RNA polymerase IV some siRNAs in plants
Created by: AshCha
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