which of the following better describes a typical actively translated mRNA in it
ID: 175259 • Letter: W
Question
which of the following better describes a typical actively translated mRNA in its Journey from the nucleus to the cytosol?
a. Initially in a circular conformation, the mRNA linearizes , enters the cytosol (5' end first), and remains linear.
b. Initially in a circular conformation, the mRNA linearizes , enters the cytosol (3' end first), and remains linear.
c. Initially linear, the mRNA enters the cytosol (5' and first), and remains linear.
d. Initially linear, the mRNA enters the cytosol (5' and first), and adopts a circular conformation.
e. Initially linear, the mRNA enters the cytosol (3' and first), and adopts a circular conformation.
Explanation / Answer
Option B is the correct answer. As initially in the nucles sometimes the RNA is found to be in circular confirmation with stretches of intron and exons. This is spliced and 3' end whih has poly adenylate helps in transfer of this RNA molecule from nucleus to the cytosol. Here it retains its linear structure and takes part in the process of translation.
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