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Protein Synthesis

Protein Synthesis
Which of the following is not necessary for protein synthesis to occur, once transcription is completed?

DNA
mRNA
tRNA
Ribosomes

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Protein Synthesis
Which of the following amino acid starts all proteins synthesis?

Proline
Glycine
Methionine
Thymine

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

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

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Protein Synthesis
How many bases of nucleic acid determine a single amino acid?

Two
Three
Four
One

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Protein Synthesis
The lac operon contains the z, y and a structural genes

encoding p-galactosidase and galactose permeases
encoding p-galactosidase, galactose permeases and thio-galactosidase transacetylase respectively
encoding P-galactosidase only
None of these

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

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

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