Question:
The cellular process which utilizes RNA-induced silencing complex to block gene expression is
The cellular process which utilizes RNA-induced silencing complex to block gene expression is
Show Hint
RISC + siRNA/miRNA = RNA interference (post-transcriptional gene silencing).
Updated On: Jan 2, 2026
- RNA editing
- RNA interference
- RNA polyadenylation
- RNA splicing
Show Solution
Verified By Collegedunia
The Correct Option is B
Solution and Explanation
RNA interference (RNAi) is a post-transcriptional gene-silencing mechanism used by cells to regulate gene expression.
It involves small interfering RNAs (siRNAs) or microRNAs (miRNAs) that guide the RNA-induced silencing complex (RISC).
RISC binds to complementary mRNA sequences and either degrades the mRNA or blocks its translation.
RNA editing modifies RNA bases, not by using RISC.
Polyadenylation adds a poly-A tail to mRNA.
RNA splicing removes introns.
Thus, only RNA interference uses RISC to silence gene expression.
It involves small interfering RNAs (siRNAs) or microRNAs (miRNAs) that guide the RNA-induced silencing complex (RISC).
RISC binds to complementary mRNA sequences and either degrades the mRNA or blocks its translation.
RNA editing modifies RNA bases, not by using RISC.
Polyadenylation adds a poly-A tail to mRNA.
RNA splicing removes introns.
Thus, only RNA interference uses RISC to silence gene expression.
Was this answer helpful?
0
0
Top GATE BT Genetics, Cellular and Molecular Biology Questions
- Mendel's 'law of segregation' applies to the segregation of________ gamete formation.
- Co-translational translocation of proteins is observed in____
- During normal embryonic development of the mice paw, elimination of cells from the inter-digital space is due to____
- A cultured skin fibroblast cell of a goat ‘P’ was fused with an enucleated ovum of a goat 'Q'. The resultant activated early embryo was then transplanted into a pseudopregnant (surrogate) female goat 'R' of the same strain as 'Q'. On completion of gestation, a female goat 'S' was born. With the exception of mitochondrial DNA, 'S' is a clone of
- Under which of the following conditions, a mammalian somatic cell fails to undergo mitosis during cell cycle?
View More Questions
Top GATE BT Questions
- In adsorption chromatography, the adsorption of uncharged solute molecules onto a silica-based stationary phase is by
- The transfer function of a process is \( G(s) = \frac{K_p}{T_p s + 1} \), where \( K_p \) is the gain and \( T_p \) is the time constant. This is a _____ process.
- Which one of the following statements is correct in the context of thermodynamics?
- Which one of the following statements is correct about Reynolds Number (NRe) in a stirred tank bioreactor?
- The relationship that involves the exchange of nutrients between two different species for their mutual growth is called___
View More Questions