Question 1

Assembly of new nucleosomes is carried out by complexes abbreviated_________ .

Accepted Answer

A)  DSB
B)  TLS
C)  TERC
D)  SSB
E)  CAF E

Question 2

Why are bacteria not dependent on telomerase for complete DNA replication?

Accepted Answer

Telomerase allows for the accu...

Question 3

What is meant by a gene knockout?

Accepted Answer

The designed loss of a specific gene in ...

Question 4

DNA polymerase III adds nucleotides_________ .

Accepted Answer

A)  in the place of the primer RNA after it is removed
B)  to internal sites in the DNA template
C)  to the 5' end of the RNA primer
D)  to the 3' end of the RNA primer
E)  to both ends of the RNA primer

Question 5

The Meselson and Stahl's experiment provided conclusive evidence for the semiconservative replication of DNA in E.coli.What pattern of bands would occur in a CsCl gradient for conservative replication?

Accepted Answer

After one generation in the 14N,there wo...

Question 6

Given the accompanying diagram,assume that a G1 chromosome left underwent one round of replication in 3H- thymidine and the metaphase chromosome right) had both chromatids labeled.Which of the following replicative models conservative,dispersive,semiconservative) could be eliminated by this observation?  3H- thymidine and the metaphase chromosome right) had both chromatids labeled.Which of the following replicative models conservative,dispersive,semiconservative) could be eliminated by this observation?   A) semiconservative B) dispersive C) conservative D) conservative and dispersive E) semiconservative and dispersive" class="answers-bank-image d-inline" rel="preload" >

Accepted Answer

A)  semiconservative
B)  dispersive
C)  conservative
D)  conservative and dispersive
E)  semiconservative and dispersive

Question 7

A molecule that possesses both a protein component and an RNA component is referred to as a _________.

Accepted Answer

A)  holoenzyme
B)  ribonucleoprotein
C)  polymerase
D)  tetramer
E)  dimer

Question 8

Chromatin is defined as_________ .

Accepted Answer

A)  DNA complexed with protein
B)  supercoiled loops of bacterial DNA
C)  hybrid molecules of DNA and RNA
D)  a catalytic molecule with a protein component and an RNA component
E)  genetic material found only in mitochondria

Question 9

Describe two processes for which recombination is essential.

Accepted Answer

The exchange of genetic information during meiosis,and the repair of double- stranded breaks in DNA molecules.

Question 10

Explain why DNA primers can be used in in vitro DNA synthesis reactions,but not in vivo.

Accepted Answer

The need for the primer is to provide a ...

Question 11

Explain the need for,and action of,DNA gyrase in bacterial DNA replication.

Accepted Answer

DNA helicase induces supercoil...

Question 12

DNA replication in vivo requires a primer with a free 3' end.What molecular species provides this 3' end,and how is it provided?

Accepted Answer

The free 3' end is provided by...

Question 13

After ONE round of DNA replication in Meselson and Stahl's classic experiment,_________.

Accepted Answer

A)  the conservative model was conclusively proven to be an inaccurate model
B)  both the conservative and the semiconservative models were still possibilities
C)  the semiconservative model was conclusively proven to be the accurate model
D)  the dispersive model was conclusively proven to be an inaccurate model
E)  all three models of replication were still possibilities

Question 14

What is the name of the replication unit in prokaryotes,and how does it differ in eukaryotes?

Accepted Answer

replicon; one replicon in prokaryotes,multiple replicons in eukaryotes

Question 15

Which eukaryotic DNA polymerase would least likely be involved in repair?

Accepted Answer

A)  fi
B)  s
C)  a
D)  6
E)  y

Question 16

The process of making DNA from an RNA template is referred to as_________ .

Accepted Answer

A)  transcription
B)  transversion
C)  recombination
D)  reverse transcription
E)  translation

Question 17

Telomerase reads _________ as a template and synthesizes _________as a product.

Accepted Answer

A)  DNA; RNA
B)  DNA; DNA
C)  DNA; protein
D)  RNA; RNA
E)  RNA; DNA

Question 18

Describe the benefit to researchers of conditional mutants.

Accepted Answer

Many mutations that would be interesting...

Question 19

Telomerase adds nucleotides to the_________ .

Accepted Answer

A)  5' end of the daughter strand
B)  5' end of the parental strand
C)  3' end of the parental strand
D)  3' end of the daughter strand

Question 20

Which of the following statement about DNA replication in E.coli is correct?

Accepted Answer

A)  Single- stranded binding proteins are only required on the leading strand.
B)  Only the lagging strand needs to be primed.
C)  There are two molecules of DNA polymerase III per replication fork.
D)  DNA polymerase I follows closely behind DNA helicase in the replication fork.
E)  There are two molecules of DNA helicase per replication fork.

Exam 11: DNA Replication and Recombination

Assembly of new nucleosomes is carried out by complexes abbreviated_________ .

Correct Answer
verified
E

Why are bacteria not dependent on telomerase for complete DNA replication?

Correct Answer
verified
Telomerase allows for the accu...
View Answer

What is meant by a gene knockout?

Correct Answer
verified
The designed loss of a specific gene in ...
View Answer

DNA polymerase III adds nucleotides_________ .

Correct Answer
verified

The Meselson and Stahl's experiment provided conclusive evidence for the semiconservative replication of DNA in E.coli.What pattern of bands would occur in a CsCl gradient for conservative replication?

Correct Answer
verified
After one generation in the 14N,there wo...
View Answer

Correct Answer
verified

A molecule that possesses both a protein component and an RNA component is referred to as a _________.

Correct Answer
verified

Chromatin is defined as_________ .

Correct Answer
verified

Describe two processes for which recombination is essential.

Correct Answer
verified
The exchange of genetic information during meiosis,and the repair of double- stranded breaks in DNA molecules.

Explain why DNA primers can be used in in vitro DNA synthesis reactions,but not in vivo.

Correct Answer
verified
The need for the primer is to provide a ...
View Answer

Explain the need for,and action of,DNA gyrase in bacterial DNA replication.

Correct Answer
verified
DNA helicase induces supercoil...
View Answer

DNA replication in vivo requires a primer with a free 3' end.What molecular species provides this 3' end,and how is it provided?

Correct Answer
verified
The free 3' end is provided by...
View Answer

After ONE round of DNA replication in Meselson and Stahl's classic experiment,_________.

Correct Answer
verified

What is the name of the replication unit in prokaryotes,and how does it differ in eukaryotes?

Correct Answer
verified
replicon; one replicon in prokaryotes,multiple replicons in eukaryotes

Which eukaryotic DNA polymerase would least likely be involved in repair?

Correct Answer
verified

The process of making DNA from an RNA template is referred to as_________ .

Correct Answer
verified

Telomerase reads _ as a template and synthesizes _as a product.

Correct Answer
verified

Describe the benefit to researchers of conditional mutants.

Correct Answer
verified
Many mutations that would be interesting...
View Answer

Telomerase adds nucleotides to the_________ .

Correct Answer
verified

Which of the following statement about DNA replication in E.coli is correct?

Correct Answer
verified

Exam 11: DNA Replication and Recombination

Assembly of new nucleosomes is carried out by complexes abbreviated_________ .

Correct AnswerverifiedE

Why are bacteria not dependent on telomerase for complete DNA replication?

Correct AnswerverifiedTelomerase allows for the accu...View AnswerShow Answer

What is meant by a gene knockout?

Correct AnswerverifiedThe designed loss of a specific gene in ...View AnswerShow Answer

DNA polymerase III adds nucleotides_________ .

Correct AnswerverifiedShow Answer

The Meselson and Stahl's experiment provided conclusive evidence for the semiconservative replication of DNA in E.coli.What pattern of bands would occur in a CsCl gradient for conservative replication?

Correct AnswerverifiedAfter one generation in the 14N,there wo...View AnswerShow Answer

Correct AnswerverifiedShow Answer

A molecule that possesses both a protein component and an RNA component is referred to as a _________.

Correct AnswerverifiedShow Answer

Chromatin is defined as_________ .

Correct AnswerverifiedShow Answer

Describe two processes for which recombination is essential.

Correct AnswerverifiedThe exchange of genetic information during meiosis,and the repair of double- stranded breaks in DNA molecules.

Explain why DNA primers can be used in in vitro DNA synthesis reactions,but not in vivo.

Correct AnswerverifiedThe need for the primer is to provide a ...View AnswerShow Answer

Explain the need for,and action of,DNA gyrase in bacterial DNA replication.

Correct AnswerverifiedDNA helicase induces supercoil...View AnswerShow Answer

DNA replication in vivo requires a primer with a free 3' end.What molecular species provides this 3' end,and how is it provided?

Correct AnswerverifiedThe free 3' end is provided by...View AnswerShow Answer

After ONE round of DNA replication in Meselson and Stahl's classic experiment,_________.

Correct AnswerverifiedShow Answer

What is the name of the replication unit in prokaryotes,and how does it differ in eukaryotes?

Correct Answerverifiedreplicon; one replicon in prokaryotes,multiple replicons in eukaryotes

Which eukaryotic DNA polymerase would least likely be involved in repair?

Correct AnswerverifiedShow Answer

The process of making DNA from an RNA template is referred to as_________ .

Correct AnswerverifiedShow Answer

Telomerase reads _________ as a template and synthesizes _________as a product.

Correct AnswerverifiedShow Answer

Describe the benefit to researchers of conditional mutants.

Correct AnswerverifiedMany mutations that would be interesting...View AnswerShow Answer

Telomerase adds nucleotides to the_________ .

Correct AnswerverifiedShow Answer

Which of the following statement about DNA replication in E.coli is correct?

Correct AnswerverifiedShow Answer

Correct Answer
verified
E

Correct Answer
verified
Telomerase allows for the accu...
View Answer

Correct Answer
verified
The designed loss of a specific gene in ...
View Answer

Correct Answer
verified

Correct Answer
verified
After one generation in the 14N,there wo...
View Answer

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified

Correct Answer
verified
The exchange of genetic information during meiosis,and the repair of double- stranded breaks in DNA molecules.

Correct Answer
verified
The need for the primer is to provide a ...
View Answer

Correct Answer
verified
DNA helicase induces supercoil...
View Answer

Correct Answer
verified
The free 3' end is provided by...
View Answer

Correct Answer
verified

Correct Answer
verified
replicon; one replicon in prokaryotes,multiple replicons in eukaryotes

Correct Answer
verified

Correct Answer
verified

Telomerase reads _ as a template and synthesizes _as a product.

Correct Answer
verified

Correct Answer
verified
Many mutations that would be interesting...
View Answer

Correct Answer
verified

Correct Answer
verified