Question

The prokaryotic replication enzyme that removes and replaces primers is _______.

	a.	ligase
	b.	DNA polymerase I
	c.	primase
	d.	DNA polymerase II

Primers are found on:

	a.	only Okazaki fragments.
	b.	both the leading and lagging strands.
	c.	only the leading strand.
	d.	only the lagging strand.
	e.	DNA polymerase III.

Which replication enzyme seals the nicks between Okazaki fragments?

	a.	Primase
	b.	DNA polymerase I
	c.	DNA LIgase
	d.	Topoisomerase

The first step in the replication of DNA is catalyzed by _____.

	a.	ligase
	b.	primase
	c.	single-stranded binding protein
	d.	DNA polymerase
	e.	helicase

Okazaki fragments are found ______.

	a.	only on the leading strand
	b.	only within primase
	c.	only in front of the replication fork
	d.	only at the origin of replication
	e.	only on the lagging strand

Which human cells have active telomerase?

	a.	Somatic cells only
	b.	Cancer cells only
	c.	Cancer cells, cells that produce gametes, and some somatic cells
	d.	Cancer cells, cells that produce gametes, and all somatic cells

The Meselson-Stahl experiment was designed to answer which question?

	a.	What part of newly replicated DNA comes from the parental molecule and what part is newly synthesized?
	b.	Is a single strand of DNA polar?
	c.	What are base-pairing rules?
	d.	Does DNA within cells exist as a double-stranded or single-stranded structure?
	e.	What is the orientation of one DNA strand relative to another within the double helix?

Answer 1