PROTEIN SYNTHESIS QUIZ

The first step in translation is

binding of mRNA to the two ribosomal subunits

binding of the two ribosomal subunits to each other

binding of mRNA to the small ribosomal subunit

binding of tRNA to the small ribosomal subunit

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The anticodon of tRNA

binds to rRNA

binds to an amino acid

binds to the Shine Dalgarno sequence

binds to an mRNA codon

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Degenerated codon differs mostly in

the identities of their second base

both (b) and (c)

the identities of their third base

the wobble position

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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

50 amino acids/sec

10 amino acids/sec

25 amino acids/sec

17 amino acids/sec

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Phosphorus is taken up by the cell during the process of

lipid synthesis.

ATP synthesis.

protein synthesis,

carbohydrate synthesis.

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The site of protein synthesis is

Endoplasmic reticulum

Nucleus

Ribosome

Chromosome

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Signal peptide protein removal that is translocated across a membrane is accomplished by

chymotrypsin

trypsin

signal peptidase

fMet aminopeptidase

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Eukaryotic mRNA binding to the ribosomes is facilitated by __________ .

the 7-methyl guanosine cap

poly A tail

the Shine Dalgarno sequence

tRNA

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Proteins contain different amino acids, whereas DNA and RNA are composed of different nucleotides

4,20

20,64

3,20

20,4

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Which of the following has unusual bases?

rRNA

mRNA

hnRNA

tRNA

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