FLUID MECHANICS QUIZ

What is the function of messenger RNA?

It is a component of the ribosomes

It is a direct copy of a gene

It is the genetic material of some organisms

It carries amino acids

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The anticodon is a structure on

rRNA.

tRNA.

mRNA.

aribosome.

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RNA instability in alkaline solutions is due to

ribose

uracil

single strand nature

adenine

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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

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

2'-O-methyl-guanosine

1-methyl-adenosine

7-methyl-guanosine

1-methyl-guanosine

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Retroviruses replicate via __________ intermediate

DNA

RNA

mRNA

rDNA

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

Bacteriophage DNA ligase

Human insulin

A restriction endonuclease from E. coli

Bacterial alpha-amylase

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

80 bp

140 bp

100 bp

120 bp

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In RNA, uracil pairs with

guanine

thymine

cytosine

adenine

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Which of the following is the smallest of the RNAs?

Messenger RNA

Transfer RNAs

All of these

Ribosomal RNAs

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