RNA STRUCTURE QUIZ

What is the function of messenger RNA?

It is a component of the ribosomes

It carries amino acids

It is a direct copy of a gene

It is the genetic material of some organisms

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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 D stem loop

in the T Loop and D stem and loop

None of these

in the anticodon loop and the 3' CCA end

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A nicked RNA molecule can be ligated by

T4 DNA ligase

DNA polymerase

all of these

T4 RNA ligase

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The anticodon is a structure on

aribosome.

mRNA.

rRNA.

tRNA.

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RNA instability in alkaline solutions is due to

uracil

single strand nature

adenine

ribose

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Retroviruses replicate via __________ intermediate

RNA

mRNA

DNA

rDNA

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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?

120 bp

80 bp

100 bp

140 bp

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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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Which of the following is the smallest of the RNAs?

All of these

Transfer RNAs

Messenger RNA

Ribosomal RNAs

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