Multiple choice

Ribosome is the site where mRNA binds and protein is synthesised by the process of translation.

In which of the following comments about 3’ poly(A) tail of mRNA, is the above statement FALSE?

  1. It is not indispensable for protein synthesis.

  2. In the nucleus, it is added to the primary transcript.

  3. It takes part during translation, by aligning eukaryotic mRNA on the ribosome.

  4. It helps to increase the stability and lifespan of mRNA.
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

It takes part during translation, by aligning eukaryotic mRNA on the ribosome. The mRNA is aligned to the ribosome by 7-methylguanosine cap. The 3’ poly(A) tail of mRNA is responsible for its stability and long lifespan.

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