CHEMICAL REACTION ENGINEERING QUIZ

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

100 bp

80 bp

140 bp

120 bp

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During RNA synthesis, the DNA template sequence 5'Tp Ap Gp Cp 3' Would be transcribed to produce which of the following RNA sequence?

5'-Ap Tp Cp Gp-3'

5'-Ap Up Cp Gp-3'

5'-Gp Cp Up Ap-3'

5'-Gp Cp Tp Ap-3'

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The anticodon is a structure on

mRNA.

tRNA.

rRNA.

aribosome.

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The tertiary structure of yeast tRNA

involves extensive base stacking interactions

is maintained mostly by non-Watson-Crick base pairing

All of these

resembles the 3-dimensional structure of other tRNAs

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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

None of these

in the T Loop and D stem and loop

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Which of the following is the smallest of the RNAs?

All of these

Messenger RNA

Transfer RNAs

Ribosomal RNAs

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RNA instability in alkaline solutions is due to

single strand nature

uracil

adenine

ribose

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Which of following RNA characteristically contains unusual purines and pyrimidmes?

mRNA

nRNA

tRNA

rRNA

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Retroviruses replicate via __________ intermediate

RNA

DNA

mRNA

rDNA

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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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