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Translation and Regulation

Translation and Regulation
The final step of gene expression is protein synthesis, which is also known as

replication
transcription
translation
none of these

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Translation and Regulation
The nonsense codon(s) is/are

UAA
UGA
all of these
UAG

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Translation and Regulation
What are the Svedberg values for the subunits of the 70S ribosomes of E. colli?

40S and 20S
50S and 30S
40S and 30S
50S and 20S

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Translation and Regulation
What is the action of tetracycline in prokaryotes?

It blocks peptidyl transferase reaction on ribosomes
Not known with certainity
It blocks the binding of amino-acyl tRNA to the A site of ribosomes
It blocks translocation reaction on ribosomes

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Translation and Regulation
During amino acid activation a(n)

amino acid is bound to mRNA
methyl group is attached to rRNA
amino acid is bound to tRNA
methyl group is attached to an amino acid

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Translation and Regulation
Which of the termination codon is called amber?

UAG
UAA
AUG
UGA

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