RNA STRUCTURE QUIZ

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 T Loop and D stem and loop

None of these

in the anticodon loop and D stem loop

TRUE ANSWER : ?
YOUR ANSWER : ?

What is the average size (in bp) of a mature t-RNA?

120 bp

80 bp

140 bp

100 bp

TRUE ANSWER : ?
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The genetic material of retroviruses such as HIV is

DNA

all of these

protein

RNA

TRUE ANSWER : ?
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What is the function of messenger RNA?

It is the genetic material of some organisms

It carries amino acids

It is a component of the ribosomes

It is a direct copy of a gene

TRUE ANSWER : ?
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Which of the following is the smallest of the RNAs?

All of these

Messenger RNA

Ribosomal RNAs

Transfer RNAs

TRUE ANSWER : ?
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Which of following RNA characteristically contains unusual purines and pyrimidmes?

rRNA

nRNA

tRNA

mRNA

TRUE ANSWER : ?
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Retroviruses replicate via __________ intermediate

mRNA

RNA

DNA

rDNA

TRUE ANSWER : ?
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What modified base is at the 5' extremity of a capped eukaryotic m-RNA?

1-methyl-guanosine

7-methyl-guanosine

2'-O-methyl-guanosine

1-methyl-adenosine

TRUE ANSWER : ?
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A nicked RNA molecule can be ligated by

T4 DNA ligase

T4 RNA ligase

all of these

DNA polymerase

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The anticodon is a structure on

aribosome.

tRNA.

mRNA.

rRNA.

TRUE ANSWER : ?
YOUR ANSWER : ?

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