Question

In this mechanism, the enzyme “dicer” cuts dsRNA into smaller fragments called ,

a)small interfering RNA
b)single celled RNA
c)double strand RNA

which form a complex with RISC and degrade specific
a)mRNA
b)proteins
c)DNA

Answer 1

To summarize what the other person said, (A) and (A)

Answer 2

RNAi is a mechanism involved in gene silencing, the process that turns on and off genes. To do that, it is triggered by double-stranded RNA (dsRNA).
The enzyme "dicer" cuts dsRNA into smaller fragments called (a) small interfering RNA. Once these fragments are cleaved, they bind to argonaut proteins and activate the RNA-induced silencing complex (RISC). This complex targets and degrades (a) specific messenger RNA (mRNA). By degrading the mRNA, this process interrupts the gene expression.