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Genetic Code and Regulation

Genetic Code and Regulation
Codon that specify the amino acids often differs in the

second base
third base
first base
none of these

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Genetic Code and Regulation
The codons which do not specify an amino acid are called

propagation code
initiation code
none of these
termination code

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Genetic Code and Regulation
AUG codes for methionine act as a

initiation code
termination code
elongation code
propagation code

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Genetic Code and Regulation
How many different codons are possible?

20
An infinite number
64
3

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Genetic Code and Regulation
Which of the following techniques was carried out by Nirenberg and Matthaei in 1961 to determine the first codon?

None of these
Mixed co-polymer mRNA synthesis
In vitro synthesis of a polypeptide using UUUUU
Labeled peptide binding to a ribosome

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Genetic Code and Regulation
In some organelles in eukaryotes, the genetic code for some codons

None of these
are partially same
are same
differs from that used in prokaryotes

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