RNA STRUCTURE QUIZ

Retroviruses replicate via __________ intermediate

rDNA

DNA

mRNA

RNA

TRUE ANSWER : ?
YOUR ANSWER : ?

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

120 bp

100 bp

80 bp

140 bp

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the smallest of the RNAs?

Messenger RNA

Ribosomal RNAs

Transfer RNAs

All of these

TRUE ANSWER : ?
YOUR ANSWER : ?

What is the function of messenger RNA?

It carries amino acids

It is a component of the ribosomes

It is a direct copy of a gene

It is the genetic material of some organisms

TRUE ANSWER : ?
YOUR ANSWER : ?

In RNA, uracil pairs with

guanine

cytosine

adenine

thymine

TRUE ANSWER : ?
YOUR ANSWER : ?

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

Bacterial alpha-amylase

Human insulin

A restriction endonuclease from E. coli

Bacteriophage DNA ligase

TRUE ANSWER : ?
YOUR ANSWER : ?

A nicked RNA molecule can be ligated by

DNA polymerase

all of these

T4 RNA ligase

T4 DNA ligase

TRUE ANSWER : ?
YOUR ANSWER : ?

The anticodon is a structure on

tRNA.

mRNA.

rRNA.

aribosome.

TRUE ANSWER : ?
YOUR ANSWER : ?

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

in the anticodon loop and D stem loop

in the anticodon loop and the 3' CCA end

None of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of following RNA characteristically contains unusual purines and pyrimidmes?

rRNA

nRNA

tRNA

mRNA

TRUE ANSWER : ?
YOUR ANSWER : ?

↑