RNA STRUCTURE QUIZ

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

in the T Loop and D stem and loop

None of these

in the anticodon loop and the 3' CCA end

in the anticodon loop and D stem loop

TRUE ANSWER : ?
YOUR ANSWER : ?

The anticodon is a structure on

tRNA.

rRNA.

mRNA.

aribosome.

TRUE ANSWER : ?
YOUR ANSWER : ?

What is the function of messenger RNA?

It is a direct copy of a gene

It is the genetic material of some organisms

It carries amino acids

It is a component of the ribosomes

TRUE ANSWER : ?
YOUR ANSWER : ?

Retroviruses replicate via __________ intermediate

mRNA

DNA

RNA

rDNA

TRUE ANSWER : ?
YOUR ANSWER : ?

The genetic material of retroviruses such as HIV is

RNA

protein

DNA

all of these

TRUE ANSWER : ?
YOUR ANSWER : ?

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

140 bp

100 bp

120 bp

80 bp

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of following RNA characteristically contains unusual purines and pyrimidmes?

tRNA

mRNA

nRNA

rRNA

TRUE ANSWER : ?
YOUR ANSWER : ?

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

7-methyl-guanosine

1-methyl-guanosine

2'-O-methyl-guanosine

1-methyl-adenosine

TRUE ANSWER : ?
YOUR ANSWER : ?

RNA instability in alkaline solutions is due to

ribose

single strand nature

uracil

adenine

TRUE ANSWER : ?
YOUR ANSWER : ?

A nicked RNA molecule can be ligated by

T4 RNA ligase

all of these

DNA polymerase

T4 DNA ligase

TRUE ANSWER : ?
YOUR ANSWER : ?

↑