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Translation and Regulation

Translation and Regulation
Which stop codon has been found to encode selenocysteine?

UAG
AGA
UGA
UAA

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Translation and Regulation
When was the genetic code completed?

1968
1952
1958
1966

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Translation and Regulation
Which binding is inhibited by pactamycin?

Peptidyl t-RNA to the 50S subunit
Initiator-tRNA to 30S/40S initiation complexes
Formation of peptide bond in P site
Aminoacyl-tRNA to the A-site of 30S subunit

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

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

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Translation and Regulation
Three stop codons, which aids in termination of translation are also known as

missense codons
pause codons
antisense codons
nonsense codons

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

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