Question

match the descriptions (listed below on the left) with the term/answer (on the right) that is the best fit. answers will not be used more than once, but some may not be used at all. essential for dna polymerase iii to initiate new dna strand synthesis. primase combines completed dna fragments on lagging strand into continuous dna strand. ligase breaks hydrogen bonds between dna strands. helicase synthesizes a short rna sequence. choose okazaki fragment ligase 3 -> 5 gyrase free 5 phosphate group free 3 oh group helicase 5 -> 3 primase the direction of dna synthesis. question 30 2 pts

Explanation:

1. DNA polymerase III needs a primer to start new DNA - strand synthesis, which is synthesized by primase.
2. DNA ligase joins the Okazaki fragments on the lagging strand to form a continuous DNA strand.
3. Helicase unwinds the DNA double - helix by breaking hydrogen bonds between DNA strands.
4. Primase synthesizes a short RNA primer.
5. DNA synthesis occurs in the 5' -> 3' direction.

Answer:

1. primase
2. ligase
3. helicase
4. primase
5. 5' -> 3'