RNA STRUCTURE QUIZ

Retroviruses replicate via __________ intermediate

rDNA

mRNA

DNA

RNA

TRUE ANSWER : ?
YOUR ANSWER : ?

What is the function of messenger RNA?

It carries amino acids

It is a component of the ribosomes

It is the genetic material of some organisms

It is a direct copy of a gene

TRUE ANSWER : ?
YOUR ANSWER : ?

In RNA, uracil pairs with

cytosine

thymine

adenine

guanine

TRUE ANSWER : ?
YOUR ANSWER : ?

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

1-methyl-guanosine

2'-O-methyl-guanosine

1-methyl-adenosine

7-methyl-guanosine

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 : ?

The genetic material of retroviruses such as HIV is

protein

all of these

RNA

DNA

TRUE ANSWER : ?
YOUR ANSWER : ?

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

A restriction endonuclease from E. coli

Bacteriophage DNA ligase

Bacterial alpha-amylase

Human insulin

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of following RNA characteristically contains unusual purines and pyrimidmes?

nRNA

rRNA

tRNA

mRNA

TRUE ANSWER : ?
YOUR ANSWER : ?

The anticodon is a structure on

aribosome.

tRNA.

mRNA.

rRNA.

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YOUR ANSWER : ?

The tertiary structure of yeast tRNA

All of these

is maintained mostly by non-Watson-Crick base pairing

involves extensive base stacking interactions

resembles the 3-dimensional structure of other tRNAs

TRUE ANSWER : ?
YOUR ANSWER : ?

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