5.2 DNA replication

Question 1

Correct match:
helicase

Answer 1

The enzyme that separates the parental strands of DNA to start replication

Question 2

origin of replication

Answer 2

The specific site where DNA replication begins

Question 3

replication fork

Answer 3

The Y-shaped region where the parental strands of DNA are being unwound

Question 4

DNA polymerase

Answer 4

The enzyme that catalyzes the synthesis of new DNA by adding nucleotides to a preexisting chain

Question 5

Correct match:
5’ to 3’

Answer 5

The direction that new DNA strands grow

Question 6

Correct match:
leading strand

Answer 6

The new strand of DNA that can be added to continuously

Question 7

Okazaki fragments

Answer 7

Portions of the lagging strand

Question 8

primase

Answer 8

makes RNA primers to tell DNA polymerase

Question 9

DNA polymerase 3rd

Answer 9

adds new nucleotides to an existing strand

Question 10

DNA polymerase 1tst

Answer 10

removes RNA primer and replaces it with DNA

Question 11

ligase

Answer 11

joins fragments of NDA that have been built separately