RNA STRUCTURE QUIZ

The anticodon is a structure on

mRNA.

tRNA.

rRNA.

aribosome.

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The genetic material of retroviruses such as HIV is

protein

DNA

all of these

RNA

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

80 bp

100 bp

140 bp

120 bp

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Retroviruses replicate via __________ intermediate

mRNA

rDNA

RNA

DNA

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The tertiary structure of yeast tRNA

involves extensive base stacking interactions

resembles the 3-dimensional structure of other tRNAs

is maintained mostly by non-Watson-Crick base pairing

All of these

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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 anticodon loop and the 3' CCA end

in the T Loop and D stem and loop

None of these

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In RNA, uracil pairs with

adenine

guanine

cytosine

thymine

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A nicked RNA molecule can be ligated by

DNA polymerase

T4 RNA ligase

T4 DNA ligase

all of these

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

1-methyl-adenosine

1-methyl-guanosine

7-methyl-guanosine

2'-O-methyl-guanosine

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Which of the following is the smallest of the RNAs?

Messenger RNA

All of these

Transfer RNAs

Ribosomal RNAs

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