QUESTIONS AND CORRECT ANSWERS
STUDY GUIDE
◉ DNA strands grow in what direction?
Answer: 5'3
◉ DNA polymerase III
Answer: replicates dna
◉ DNA polymerase I
Answer: repairs dna
◉ Helicase
Answer: unwinds dna strands, travels in 5'3 directions
◉ dna topoisomerase
Answer: travels ahead of replication fork..alleviates coiling from
helicase action
◉ DNA primase
, Answer: starts synthesis of a short strand call primer RNA
◉ DNA primase
Answer: dna polymerase adds deoxynucleotides onto primer RNA
◉ DNA polymerase + primer RNA
Answer: DNA;; synthesized 5'3
◉ DNA leading strand
Answer: is continuous, 5'3 direction
◉ DNA lagging strand
Answer: starts over and over; produces okazaki fragements
◉ Okazaki fragments
Answer: joined by DNA ligase to make a continous strand
◉ DNA primase makes RNA primer to begin what?
Answer: replication
◉ DNA primse hops back to the opening of the fork and makes a
second RNA primer for which strand?