RNA STRUCTURE QUIZ

Which of following RNA characteristically contains unusual purines and pyrimidmes?

rRNA

tRNA

nRNA

mRNA

TRUE ANSWER : ?
YOUR ANSWER : ?

Retroviruses replicate via __________ intermediate

mRNA

rDNA

RNA

DNA

TRUE ANSWER : ?
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The tertiary structure of yeast tRNA

resembles the 3-dimensional structure of other tRNAs

All of these

involves extensive base stacking interactions

is maintained mostly by non-Watson-Crick base pairing

TRUE ANSWER : ?
YOUR ANSWER : ?

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

1-methyl-adenosine

1-methyl-guanosine

2'-O-methyl-guanosine

7-methyl-guanosine

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A nicked RNA molecule can be ligated by

T4 DNA ligase

DNA polymerase

T4 RNA ligase

all of these

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The genetic material of retroviruses such as HIV is

RNA

DNA

all of these

protein

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

80 bp

120 bp

100 bp

140 bp

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What is the function of messenger RNA?

It is a component of the ribosomes

It carries amino acids

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

adenine

cytosine

guanine

thymine

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

Human insulin

A restriction endonuclease from E. coli

Bacteriophage DNA ligase

Bacterial alpha-amylase

TRUE ANSWER : ?
YOUR ANSWER : ?

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