8.2

Question 1

leading strand

Answer 1

the parent strand that is added to continuously.

Question 2

lagging strand

Answer 2

the parent strand that is added to non-continuously

Question 3

semi-discontinuous

Answer 3

A mode of DNA replication in which one new strand is synthesized continuously, while the other is synthesized discontinuously as Okazaki fragments

Question 4

semiconservative replication

Answer 4

When replicating, DNA base pairs are broken apart in order to form two new strands.

Question 5

Okazaki fragments

Answer 5

DNA fragments created on the lagging strand

Question 6

Helicase

Answer 6

breaks the hydrogen bonds apart

Question 7

DNA polymerase I

Answer 7

Replaces RNA primer with DNA

Question 8

DNA polymerase III

Answer 8

aligns free nucleotide with their base partners

Question 9

Ligase

Answer 9

Connects fragments left after DNA polymerase I to the rest of the strand

Question 10

Primase

Answer 10

Generates an RNA primer that serves as a starting point for DNA polymerase III

Question 11

Order of events:

Answer 11

Helicase separates strands; Primase constructs an RNA primer; DNA polymerase III builds off the primer and builds the rest of the chain; DNA polymerase I replaces the RNA primer with DNA; Ligase connects the DNA fragments left after DNA polymerase I.

Question 12

Meselson-Stahl experiment

Answer 12

An experiment in which it was determined that DNA uses semi-conservative replication