Processing of the mRNA begins before transcription of eukaryotic mRNA's is complete. The end of the mRNA is prepared
for recognition by the ribosomes of the cell and protected from exonuclease degradation by a process called "capping."
During this multi-step process a nucleoside is added to the end of the mRNA and then modified. Complete the statements
about the capping process.
Capping occurs at the
end of the mRNA.
The nucleoside added is
The nucleoside is connected to the mRNA through a
linkage.
The added nucleoside is modified by methylation at
atom.
The mRNA is modified by methylation of ribose residues at the
-hydroxy position
Answer Bank
P
ine
cytidine
phosphate
diphosphate
uridine
an oxygen
a nitrogen
adenosine
triphosphate