RNA STRUCTURE QUIZ

RNA instability in alkaline solutions is due to

uracil

adenine

single strand nature

ribose

TRUE ANSWER : ?
YOUR ANSWER : ?

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

in the anticodon loop and the 3' CCA end

None of these

in the anticodon loop and D stem loop

in the T Loop and D stem and loop

TRUE ANSWER : ?
YOUR ANSWER : ?

The anticodon is a structure on

mRNA.

rRNA.

tRNA.

aribosome.

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YOUR ANSWER : ?

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

Bacteriophage DNA ligase

Human insulin

Bacterial alpha-amylase

A restriction endonuclease from E. coli

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YOUR ANSWER : ?

The genetic material of retroviruses such as HIV is

protein

DNA

RNA

all of these

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of the following is the smallest of the RNAs?

Ribosomal RNAs

Messenger RNA

All of these

Transfer RNAs

TRUE ANSWER : ?
YOUR ANSWER : ?

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

1-methyl-guanosine

1-methyl-adenosine

7-methyl-guanosine

2'-O-methyl-guanosine

TRUE ANSWER : ?
YOUR ANSWER : ?

In RNA, uracil pairs with

thymine

guanine

cytosine

adenine

TRUE ANSWER : ?
YOUR ANSWER : ?

During RNA synthesis, the DNA template sequence 5'Tp Ap Gp Cp 3' Would be transcribed to produce which of the following RNA sequence?

5'-Gp Cp Tp Ap-3'

5'-Gp Cp Up Ap-3'

5'-Ap Up Cp Gp-3'

5'-Ap Tp Cp Gp-3'

TRUE ANSWER : ?
YOUR ANSWER : ?

Retroviruses replicate via __________ intermediate

RNA

rDNA

DNA

mRNA

TRUE ANSWER : ?
YOUR ANSWER : ?

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