RNA STRUCTURE QUIZ

The anticodon is a structure on

mRNA.

aribosome.

tRNA.

rRNA.

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Which of the following is the smallest of the RNAs?

All of these

Messenger RNA

Ribosomal RNAs

Transfer RNAs

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

120 bp

80 bp

100 bp

140 bp

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What is the function of messenger RNA?

It is the genetic material of some organisms

It carries amino acids

It is a component of the ribosomes

It is a direct copy of a gene

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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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RNA instability in alkaline solutions is due to

uracil

ribose

adenine

single strand nature

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Which of following RNA characteristically contains unusual purines and pyrimidmes?

tRNA

rRNA

nRNA

mRNA

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The tertiary structure of yeast tRNA

resembles the 3-dimensional structure of other tRNAs

is maintained mostly by non-Watson-Crick base pairing

involves extensive base stacking interactions

All of these

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Retroviruses replicate via __________ intermediate

RNA

mRNA

rDNA

DNA

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