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Questions and Answers
Which enzyme cleaves double-stranded siRNA into smaller fragments?
Which enzyme cleaves double-stranded siRNA into smaller fragments?
- Dicer (correct)
- Intron
- Argonaut
- Ribonuclease
What is the function of the RISC complex in RNA interference?
What is the function of the RISC complex in RNA interference?
- Activating gene expression
- Degradation of siRNA
- Pairing with mRNA to inhibit translation or cleaving of the mRNA (correct)
- Promoting mRNA stability
In RNA interference, what is used for gene knockdown in research?
In RNA interference, what is used for gene knockdown in research?
- Single-stranded RNA
- Double-stranded RNA (correct)
- Non-coding RNA
- Micro RNA
What is the role of the antisense RNA in the formation of the RISC complex?
What is the role of the antisense RNA in the formation of the RISC complex?
What is the role of tryptophan in the regulation of the trp operon?
What is the role of tryptophan in the regulation of the trp operon?
What is the consequence of an excess of tryptophan in the environment or in the cell?
What is the consequence of an excess of tryptophan in the environment or in the cell?
True or false: Tryptophan acts as a co-repressor in the regulation of the trp operon by preventing transcription of the structural genes.
True or false: Tryptophan acts as a co-repressor in the regulation of the trp operon by preventing transcription of the structural genes.
True or false: When there is an excess of tryptophan in the environment, the trp operon is repressed, leading to limited transcription of the structural genes involved in tryptophan synthesis.
True or false: When there is an excess of tryptophan in the environment, the trp operon is repressed, leading to limited transcription of the structural genes involved in tryptophan synthesis.
RNA silencing limits the transcript level by activating a sequence-specific RNA degradation process.
RNA silencing limits the transcript level by activating a sequence-specific RNA degradation process.
In the Lac operon, LacY encodes for transacetylase.
In the Lac operon, LacY encodes for transacetylase.
TCS is a type of regulatory system used by bacteria to detect chemical and/or physical signals found in its environment.
TCS is a type of regulatory system used by bacteria to detect chemical and/or physical signals found in its environment.
SiRNA is a type of RNA interference that involves short exogenous interfering dsRNA.
SiRNA is a type of RNA interference that involves short exogenous interfering dsRNA.
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