Question

which part of gene expression can be regulated by non-coding RNA

(A) chromatin remodeling

(B) mRNA degradation, translation and chromatin remodeling

(C) mRNA degradation

(D) translation

(E) mRNA degradation and translation

Answer 1

Option E is the correct answer.

A non-coding RNA is that RNA which is not translated into proteins after transcribing from DNA. These Non-coding RNAs are also functional and regulate gene expression at transcription and post-transcriptional level. miRNA, siRNA, piRNA and lncRNA are the example of Non-coding RNAs.

Here mRNA degradation and translation are the post-transcriptional events while chromatin remodeling occurs before transcription to expose the DNA molecules with transcription machinery. Hence, option E is the correct answer.