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RNA Structure

RNA Structure
A nicked RNA molecule can be ligated by

DNA polymerase
all of these
T4 DNA ligase
T4 RNA ligase

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RNA Structure
Two features of the tRNA molecule associated, in converting the triplet codon to an amino acid, are

in the anticodon loop and the 3' CCA end
in the anticodon loop and D stem loop
None of these
in the T Loop and D stem and loop

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RNA Structure
The anticodon is a structure on

aribosome.
tRNA.
mRNA.
rRNA.

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RNA Structure
What is the function of messenger RNA?

It is a component of the ribosomes
It is the genetic material of some organisms
It carries amino acids
It is a direct copy of a gene

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RNA Structure
The mRNA from which of the following would contain a poly-A tail?

Bacteriophage DNA ligase
Human insulin
Bacterial alpha-amylase
A restriction endonuclease from E. coli

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RNA Structure
Which of following RNA characteristically contains unusual purines and pyrimidmes?

mRNA
tRNA
nRNA
rRNA

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