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Protein Synthesis

Protein Synthesis
Which of the following RNAs bind to an amino acid?

mRNA
tRNA
hnRNA
rRNA

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Protein Synthesis
Phosphorus is taken up by the cell during the process of

protein synthesis,
lipid synthesis.
carbohydrate synthesis.
ATP synthesis.

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

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

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Protein Synthesis
The pathway of a tRNA during polypeptide elongation on the ribosome is

P site → A site → E site
A site → P site → entry site
A site → P site → E site
P site → entry site → exit site

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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

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

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

20,64
3,20
20,4
4,20

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