siRNAs act primarily to inhibit
A) transcription, by binding to specific genes.
B) transcription, by formation of heterochromatin.
C) translation, by blocking ribosomal attachment.
D) translation, by binding to an mRNA.

Question

Quizplus · Accepted Answer

siRNAs, or small interfering RNAs, bind to complementary sequences on mRNA molecules and induce their degradation, leading to inhibition of translation. They do not directly interact with genes or affect transcription or chromatin structure.

SiRNAs Act Primarily to Inhibit