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Protein Synthesis

Protein Synthesis
Which of the following has unusual bases?

mRNA
rRNA
hnRNA
tRNA

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Protein Synthesis
The peptidyl transferase reaction occurs

on the large subunit
on the small subunit
between the subunit
none of these

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Protein Synthesis
Which site of the tRNA molecule binds to the mRNA molecule?

Codon
Amino acid
5 prime end
Anticodon

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Protein Synthesis
Protein synthesis rates in prokaryotes are limited by the rate of mRNA synthesis. If RNA synthesis occurs at the rate of 50 nucleotides/sec, then rate of protein synthesis occurs at

25 amino acids/sec
17 amino acids/sec
10 amino acids/sec
50 amino acids/sec

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Protein Synthesis
The ribosomes are composed of

lipids
RNA
both (a) and (b)
proteins

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Protein Synthesis
The growing polypeptide chain is released from the ribosomes when

the poly A tail is reached
a chain terminating tRNA binds to the ribosome
the 7-methyl guanosine cap is reached
a chain terminating codon is reached

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