Quick Multiple Choice Questions Biology

Question

Which of the following is a way that eukaryote mRNA is processed after being synthesized?

  a.

A 5’ cap is added to the mRNA

  b.

A 3’ poly-A tail is added to the mRNA

  c.

Introns are removed from the mRNA

  d.

all of the above

Answer 1

D. All of the above. All of these modifications must occur before a mature mRNA molecule is formed. This one of the many distinctions between prokaryotic and eukaryotic transcription. Hope this helps!

Answer 2

Thanks for your question! All three occur during mRNA synthesis, so the answer is all of the above.

The cap and tail function in protecting the mRNA from degradation, and the cap also helps the ribosome bind to the mRNA during translation. Introns are non-coding regions that must be removed and stay in the nucleus; the exons exit the nucleus.

Hope that helps!