Question 1

RNA interference is triggered by ـــــــــــــــ.

Accepted Answer

A) dsDNA 
B) dsRNA 
C) ssDNA 
D) ssRNA 
A) dsDNA 
B) dsRNA 
C) ssDNA 
D) ssRNA B

Question 2

Attenuation of RNA involves the formation of alternate stem-loop structures.

Accepted Answer

A) True 
 B)False  True

Question 3

Proteins that prevent translation of mRNA are calledــــــــــــــــــــ .

Accepted Answer

A) nucleases 
B) translational repressors 
C) proteases 
D) mRNA silencers 
A) nucleases 
B) translational repressors 
C) proteases 
D) mRNA silencers B

Question 4

In bacteria,ـــــــــــــــــــthe system destroys incoming viral DNA and RNA.

Accepted Answer

A) RISC 
B) Dicer 
C) Slicer 
D) CRISPR 
A) RISC 
B) Dicer 
C) Slicer 
D) CRISPR

Question 5

The blocking of translation of an mRNA by miRNA occurs because the miRNAــــــــــــــــــــــ .

Accepted Answer

A) binds to the 3'-UTR of the mRNA and prevents translation 
B) targets the mRNA for degradation by Slicer 
C) binds to the 5'-UTR to prevent the ribosome from binding 
D) folds into alternative stem-loop structure and protects the mRNA from nuclease cleavage 
A) binds to the 3'-UTR of the mRNA and prevents translation 
B) targets the mRNA for degradation by Slicer 
C) binds to the 5'-UTR to prevent the ribosome from binding 
D) folds into alternative stem-loop structure and protects the mRNA from nuclease cleavage

Question 6

RNA interference occurs in bacteria.

Accepted Answer

A) True 
 B)False

Question 7

Which nuclease is responsible for generating siRNA?

Accepted Answer

A) Ribonuclease P 
B) Dicer 
C) Slicer 
D) RISC 
A) Ribonuclease P 
B) Dicer 
C) Slicer 
D) RISC

Question 8

Riboswitchesــــــــــــــــ .

Accepted Answer

A) can bind small molecules 
B) are useful in translational control 
C) are found on the 5' end of the mRNA 
D) are all of the above 
A) can bind small molecules 
B) are useful in translational control 
C) are found on the 5' end of the mRNA 
D) are all of the above

Question 9

RISC proteins recognize small RNA fragments calledـــــــــــــــ .

Accepted Answer

A) Slicer 
B) Dicer 
C) siRNA 
D) miRNA 
A) Slicer 
B) Dicer 
C) siRNA 
D) miRNA

Question 10

Which statement is false?

Accepted Answer

A) Nucleases are not part of the RNAi scenario. 
B) Some small RNAs help stabilize the mRNA and protect it from degradation. 
C) RNAi is a form of gene silencing that involves degradation of target RNAs. 
D) Riboswitches bind small molecules. 
A) Nucleases are not part of the RNAi scenario. 
B) Some small RNAs help stabilize the mRNA and protect it from degradation. 
C) RNAi is a form of gene silencing that involves degradation of target RNAs. 
D) Riboswitches bind small molecules.

RNA interference is triggered by ـــــــــــــــ.

Attenuation of RNA involves the formation of alternate stem-loop structures.

Proteins that prevent translation of mRNA are calledــــــــــــــــــــ .

In bacteria,ـــــــــــــــــــthe system destroys incoming viral DNA and RNA.

The blocking of translation of an mRNA by miRNA occurs because the miRNAــــــــــــــــــــــ .

RNA interference occurs in bacteria.

Which nuclease is responsible for generating siRNA?

Riboswitchesــــــــــــــــ .

RISC proteins recognize small RNA fragments calledـــــــــــــــ .

Which statement is false?

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

Analysis of Gene Expression

Plasmids

Viruses

Mobile DNA

Mutations and Repair

Recombination

Bacterial Genetics

Molecular Evolution

Filters

Exam 18: Regulation at the RNA Level

RNA interference is triggered by ـــــــــــــــ.

Attenuation of RNA involves the formation of alternate stem-loop structures.

Proteins that prevent translation of mRNA are calledــــــــــــــــــــ .

In bacteria,ـــــــــــــــــــthe system destroys incoming viral DNA and RNA.

The blocking of translation of an mRNA by miRNA occurs because the miRNAــــــــــــــــــــــ .

RNA interference occurs in bacteria.

Which nuclease is responsible for generating siRNA?

Riboswitchesــــــــــــــــ .

RISC proteins recognize small RNA fragments calledـــــــــــــــ .

Which statement is false?

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

Analysis of Gene Expression

Plasmids

Viruses

Mobile DNA

Mutations and Repair

Recombination

Bacterial Genetics

Molecular Evolution

Filters