QuizMaster

Question: DNA gyrase in E. coli
[A].

adds positive supercoils to chromosomal DNA

[B].

can be inhibited with antibiotics

[C].

is required only at the oriC site

[D].

performs the same function as helicase in eukaryotes

Answer: Option B

Explanation:

No answer description available for this question.

Question: An important difference between eukaryotic and prokaryotic DNA replication is
[A].

eukaryotic DNA polymerases are faster

[B].

more DNA polymerases are found in eukaryotes

[C].

multiple origins of replication in eukaryotes

[D].

RNA primers are not required in eukaryotes

Answer: Option C

Explanation:

No answer description available for this question.

Question: Messelsen and Stahl model of replication was called
[A].

conservative replication

[B].

semi-conservative replication

[C].

dispersive replication

[D].

Cri du Chat

Answer: Option B

Explanation:

No answer description available for this question.

Question: DNA replication results in
[A].

two completely new DNA molecules

[B].

two DNA molecules such that each one contains a strand of the original

[C].

one new DNA molecules 1 old molecule

[D].

one new molecule of RNA

Answer: Option B

Explanation:

No answer description available for this question.

Question: Okazaki fragments occur on the __________ and are bonded together by __________
[A].

Leading strand, polymerase

[B].

mRNA, anticodons

[C].

Lagging strand, ligase

[D].

tRNA, polymerase

Answer: Option C

Explanation:

No answer description available for this question.

Question: Overwinding or overtightening of DNA during replication is caused and removed by
[A].

DNAb, DNA polymerase

[B].

DNAa, gyrase

[C].

DNAb, gyrase

[D].

Single stranded protein, DNAa

Answer: Option C

Explanation:

No answer description available for this question.