RNA STRUCTURE QUIZ

Which of following RNA characteristically contains unusual purines and pyrimidmes?

rRNA

tRNA

nRNA

mRNA

TRUE ANSWER : ?
YOUR ANSWER : ?

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 : ?
YOUR ANSWER : ?

The genetic material of retroviruses such as HIV is

DNA

RNA

protein

all of these

TRUE ANSWER : ?
YOUR ANSWER : ?

In RNA, uracil pairs with

guanine

cytosine

adenine

thymine

TRUE ANSWER : ?
YOUR ANSWER : ?

Retroviruses replicate via __________ intermediate

DNA

mRNA

RNA

rDNA

TRUE ANSWER : ?
YOUR ANSWER : ?

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

A restriction endonuclease from E. coli

Human insulin

Bacterial alpha-amylase

Bacteriophage DNA ligase

TRUE ANSWER : ?
YOUR ANSWER : ?

RNA instability in alkaline solutions is due to

single strand nature

adenine

ribose

uracil

TRUE ANSWER : ?
YOUR ANSWER : ?

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

140 bp

100 bp

80 bp

120 bp

TRUE ANSWER : ?
YOUR ANSWER : ?

The anticodon is a structure on

mRNA.

aribosome.

tRNA.

rRNA.

TRUE ANSWER : ?
YOUR ANSWER : ?

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

1-methyl-adenosine

7-methyl-guanosine

1-methyl-guanosine

2'-O-methyl-guanosine

TRUE ANSWER : ?
YOUR ANSWER : ?

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