RNA editing is an important epigenetic mechanism: It occurs when small RNA molecules act directly on strands of
A) messenger DNA.
B) junk DNA.
C) histone.
D) methylated DNA.
E) messenger RNA.

Question

Quizplus · Accepted Answer

RNA editing is a process that involves the alteration of RNA molecules after they have been transcribed from DNA. Specifically, it occurs when small RNA molecules, such as microRNAs, act directly on the messenger RNA (mRNA) molecule, leading to the addition, deletion, or substitution of nucleotides. This can result in changes to the amino acid sequence of the protein that the mRNA codes for, potentially altering its function. Therefore, option E (messenger RNA) is the correct choice.

RNA Editing Is an Important Epigenetic Mechanism: It Occurs When