Asked by: Rejane Willeckenscience genetics
Does prokaryotic mRNA have cap and tail?
Last Updated: 15th January, 2020
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Similarly, do prokaryotic mRNA have poly A tail?
The poly(A) tail is important for the nuclear export, translation, and stability of mRNA. mRNA molecules in both prokaryotes and eukaryotes have polyadenylated 3′-ends, with the prokaryotic poly(A) tails generally shorter and less mRNA molecules polyadenylated.
Subsequently, question is, what is the cap and tail of mRNA? Both ends of a pre-mRNA are modified by the addition of chemical groups. The group at the beginning (5' end) is called a cap, while the group at the end (3' end) is called a tail.
Keeping this in view, does prokaryotic mRNA have a cap?
Once in place, the cap plays a role in the ribosomal recognition of messenger RNA during translation into a protein. Prokaryotes do not have a similar cap because they use other signals for recognition by the ribosome.
What is the function of the cap and tail on eukaryotic mRNA?
- They are involved in increasing the speed of translation by a ribosome. - They are involved in removing exons from the mRNA. - They are involved in preventing translation of an mRNA until after it leaves the nucleus.