RNA STRUCTURE QUIZ

RNA instability in alkaline solutions is due to

single strand nature

ribose

adenine

uracil

TRUE ANSWER : ?
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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

in the anticodon loop and D stem loop

in the T Loop and D stem and loop

None of these

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The tertiary structure of yeast tRNA

resembles the 3-dimensional structure of other tRNAs

involves extensive base stacking interactions

All of these

is maintained mostly by non-Watson-Crick base pairing

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The genetic material of retroviruses such as HIV is

all of these

protein

RNA

DNA

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

140 bp

120 bp

80 bp

100 bp

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

Bacteriophage DNA ligase

Bacterial alpha-amylase

Human insulin

A restriction endonuclease from E. coli

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Which of following RNA characteristically contains unusual purines and pyrimidmes?

rRNA

tRNA

nRNA

mRNA

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A nicked RNA molecule can be ligated by

DNA polymerase

all of these

T4 DNA ligase

T4 RNA ligase

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Which of the following is the smallest of the RNAs?

All of these

Ribosomal RNAs

Messenger RNA

Transfer RNAs

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The anticodon is a structure on

aribosome.

rRNA.

tRNA.

mRNA.

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