What function is accomplished by snoRNAs?
A)spicing site recognition
B)capping of the mRNA
C)methylation of tRNAs
D)methylation of rRNA
E)splicosome catalytic site recognition

Question

Quizplus · Accepted Answer

snoRNAs (small nucleolar RNAs) function primarily in the modification and processing of ribosomal RNA (rRNA) by guiding the addition of methyl or pseudouridine groups to specific nucleotides. This process contributes to the stability and proper functioning of the ribosome, which is essential for protein synthesis. Therefore, choice D (methylation of rRNA) is the correct answer. Choices A, B, and E are not related to the function of snoRNAs, and choice C is incorrect because tRNA methylation is primarily guided by different types of RNA molecules called tRNA methyltransferases.

What Function Is Accomplished by SnoRNAs