Question 1

Reverse transcsriptase is needed forــــــــــــــــــ .

Accepted Answer

A) the movement of retrotransposons 
B) the integration of RNA transposons 
C) the transcription of RNA transposons 
D) the excision of retrotransposons 
A) the movement of retrotransposons 
B) the integration of RNA transposons 
C) the transcription of RNA transposons 
D) the excision of retrotransposons A

Question 2

What is the purpose of the inverted repeats at the ends of DNA-based transposons?

Accepted Answer

A) The inverted repeats are recognized by enzymes that move the elements. 
B) The inverted repeats are the sites of transfer. 
C) The inverted repeats are recognized by restriction enzymes that cut out the transposon. 
D) The inverted repeats are magnets for nucleases. 
A) The inverted repeats are recognized by enzymes that move the elements. 
B) The inverted repeats are the sites of transfer. 
C) The inverted repeats are recognized by restriction enzymes that cut out the transposon. 
D) The inverted repeats are magnets for nucleases. A

Question 3

Resolvase is needed forــــــــــــــــــــــ .

Accepted Answer

A) conservative transposition 
B) replicative transposition 
C) simple transposons 
D) retrotransposons 
A) conservative transposition 
B) replicative transposition 
C) simple transposons 
D) retrotransposons B

Question 4

Internal resolution sites of complex transposons are recognized by ـــــــــــــــــــــ.

Accepted Answer

A) Dicer 
B) cointegrase 
C) recombinase 
D) resolvase 
A) Dicer 
B) cointegrase 
C) recombinase 
D) resolvase

Question 5

Where might mobile DNA elements be found?

Accepted Answer

A) plasmids 
B) chromosomes 
C) viral genomes 
D) all of the above 
A) plasmids 
B) chromosomes 
C) viral genomes 
D) all of the above

Question 6

Theـــــــــــــــــــ of Tn21 family of transposons acts as a gene acquisition and expression system and has been implicated in the spread of antibiotic resistance.

Accepted Answer

A) IRS 
B) integron 
C) replicon 
D) inverted repeats 
A) IRS 
B) integron 
C) replicon 
D) inverted repeats

Question 7

Any DNA or RNA molecule that has an origin of replication is called aـــــــــــــــــــــــ .

Accepted Answer

A) mobile element 
B) transposon 
C) replicon 
D) integron 
A) mobile element 
B) transposon 
C) replicon 
D) integron

Question 8

Defective copies of transposable elements that are found in genomes are calledـــــــــــــــــــــــ .

Accepted Answer

A) junk DNA 
B) transposable elements 
C) retrotransposons 
D) introns 
A) junk DNA 
B) transposable elements 
C) retrotransposons 
D) introns

Question 9

Conservative transpositionــــــــــــــــــــــــــ .

Accepted Answer

A) generates a copy of the transposon 
B) generates double-stranded breaks in the DNA 
C) occurs only for RNA transposons 
D) has no detrimental effects on the host genome. 
A) generates a copy of the transposon 
B) generates double-stranded breaks in the DNA 
C) occurs only for RNA transposons 
D) has no detrimental effects on the host genome.

Question 10

All transposons have all of the following characteristics except ــــــــــــــــــــــ.

Accepted Answer

A) the gene for transposase 
B) inverted repeats 
C) resolvase 
D) antibiotic resistance genes 
A) the gene for transposase 
B) inverted repeats 
C) resolvase 
D) antibiotic resistance genes

Reverse transcsriptase is needed forــــــــــــــــــ .

What is the purpose of the inverted repeats at the ends of DNA-based transposons?

Resolvase is needed forــــــــــــــــــــــ .

Internal resolution sites of complex transposons are recognized by ـــــــــــــــــــــ.

Where might mobile DNA elements be found?

Theـــــــــــــــــــ of Tn21 family of transposons acts as a gene acquisition and expression system and has been implicated in the spread of antibiotic resistance.

Any DNA or RNA molecule that has an origin of replication is called aـــــــــــــــــــــــ .

Defective copies of transposable elements that are found in genomes are calledـــــــــــــــــــــــ .

Conservative transpositionــــــــــــــــــــــــــ .

All transposons have all of the following characteristics except ــــــــــــــــــــــ.

Cells and Organisms

Basic Genetics

DNA, RNA, and Protein

Genes, genomes, and DNA

Manipulation of Nucleic Acids

Polymerase Chain Reaction

Recombinant DNA Technology

DNA Sequencing

Genomics Systems Biology

Cell Division and DNA Replication

Transcription of Genes

Processing of RNA

Protein Synthesis

Protein Structure and Function

Proteomics

Regulation of Transcription in Prokaryotes

Regulation of Transcription in Eukaryotes

Regulation at the RNA Level

Analysis of Gene Expression

Plasmids

Viruses

Mutations and Repair

Recombination

Bacterial Genetics

Molecular Evolution

Filters

Exam 22: Mobile DNA

Reverse transcsriptase is needed forــــــــــــــــــ .

What is the purpose of the inverted repeats at the ends of DNA-based transposons?

Resolvase is needed forــــــــــــــــــــــ .

Internal resolution sites of complex transposons are recognized by ـــــــــــــــــــــ.

Where might mobile DNA elements be found?

Theـــــــــــــــــــ of Tn21 family of transposons acts as a gene acquisition and expression system and has been implicated in the spread of antibiotic resistance.

Any DNA or RNA molecule that has an origin of replication is called aـــــــــــــــــــــــ .

Defective copies of transposable elements that are found in genomes are calledـــــــــــــــــــــــ .

Conservative transpositionــــــــــــــــــــــــــ .

All transposons have all of the following characteristics except ــــــــــــــــــــــ.

Cells and Organisms

Basic Genetics

DNA, RNA, and Protein

Genes, genomes, and DNA

Manipulation of Nucleic Acids

Polymerase Chain Reaction

Recombinant DNA Technology

DNA Sequencing

Genomics Systems Biology

Cell Division and DNA Replication

Transcription of Genes

Processing of RNA

Protein Synthesis

Protein Structure and Function

Proteomics

Regulation of Transcription in Prokaryotes

Regulation of Transcription in Eukaryotes

Regulation at the RNA Level

Analysis of Gene Expression

Plasmids

Viruses

Mutations and Repair

Recombination

Bacterial Genetics

Molecular Evolution

Filters