The miRNAs in a cell
A) are responsible for inducing operons.
B) allow different cells to produce different proteins.
C) are found in prokaryotic cells.
D) are a part of the prokaryotic ribosome.
E) are a part of the eukaryotic ribosome.

Question

Quizplus · Accepted Answer

miRNAs (microRNAs) are small non-coding RNA molecules that can regulate gene expression by targeting mRNAs for degradation or by inhibiting their translation. Therefore, different cells can produce different proteins based on the miRNAs present in that cell. miRNAs are found in eukaryotic cells, not prokaryotic cells, and are not responsible for inducing operons. They are not a part of the ribosome in either prokaryotes or eukaryotes.

The MiRNAs in a Cell