MANUFACTURING AND PRODUCTION TECHNOLOGY QUIZ

RNA instability in alkaline solutions is due to

uracil

single strand nature

adenine

ribose

TRUE ANSWER : ?
YOUR ANSWER : ?

A nicked RNA molecule can be ligated by

T4 RNA ligase

DNA polymerase

all of these

T4 DNA ligase

TRUE ANSWER : ?
YOUR ANSWER : ?

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

A restriction endonuclease from E. coli

Bacterial alpha-amylase

Bacteriophage DNA ligase

Human insulin

TRUE ANSWER : ?
YOUR ANSWER : ?

Retroviruses replicate via __________ intermediate

mRNA

rDNA

DNA

RNA

TRUE ANSWER : ?
YOUR ANSWER : ?

In RNA, uracil pairs with

guanine

thymine

cytosine

adenine

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The tertiary structure of yeast tRNA

All of these

resembles the 3-dimensional structure of other tRNAs

is maintained mostly by non-Watson-Crick base pairing

involves extensive base stacking interactions

TRUE ANSWER : ?
YOUR ANSWER : ?

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

2'-O-methyl-guanosine

1-methyl-guanosine

1-methyl-adenosine

7-methyl-guanosine

TRUE ANSWER : ?
YOUR ANSWER : ?

Which of following RNA characteristically contains unusual purines and pyrimidmes?

tRNA

mRNA

rRNA

nRNA

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

140 bp

80 bp

100 bp

120 bp

TRUE ANSWER : ?
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The genetic material of retroviruses such as HIV is

RNA

DNA

protein

all of these

TRUE ANSWER : ?
YOUR ANSWER : ?