Deck 10: Cell Division and DNA Replication

Question 1

Origins are replication are .

A)GC-rich
B)AT-rich
C)runs of adenine residues
D)heavily methylated

Answer 1

B

Question 2

All DNA replication results in two copies of double-stranded DNA,each copy having a parent strand and a newly synthesized strand.This is referred to as .

A)semi-conservative replication
B)conservative replication
C)antiparallelism
D)complementarity

Answer 2

A

Question 3

Replication is initiated at .

A)telomeres
B)centromeres
C)the origins are replication
D)the start of every gene

Answer 3

C

Question 4

DNA is duplicated during mitosis.

Question 5

During which phase of the cell cycle is DNA replicated?

A)mitosis
B)S-phase
C)G1
D)G2

Question 6

In replication,is responsible for opening up and unwinding the DNA at the origin.

A)DNA polymerase
B)ligase
C)helicase
D)primase

Question 7

During replicating,incoming nucleotides are always added to the free of the preceding nucleotide.

A)3' phosphate
B)5' phosphate
C)3' hydroxyl
D)5' hydroxyl

Question 8

Replication always proceeds relative to the new strand.

A)unidirectional from the origin
B)left to right
C)3' to 5'
D)5' to 3'

Question 9

The process of does not use mitosis.

A)gamete formation
B)embryogenesis
C)asexual reproduction
D)tissue repair/wound healing

Question 10

How many origins are replication are typical of bacterial circular chromosomes?

A)None.Bacterial chromosomes replicate by binary fission
B)1
C)2
D)Many.

Question 11

G1,S,and G2 are collectively called .

A)the cell cycle
B)interphase
C)cell division
D)cytokinesis