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Genetic Code and Regulation

Genetic Code and Regulation
The genetic code is degenerated. Which of the following codons represents the principle of degeneracy?

UAA and UAC
AUG and AUA
CAU and CAC
UUA and UUC

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

termination code
propagation code
none of these
initiation code

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Genetic Code and Regulation
In prokaryotes, AUG encodes

methionine
alanine
a stop codon
N-formyl methionine

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Genetic Code and Regulation
How many amino acids will be encoded by 5' GAU GGU UGA UGU 3' sequence?

Three
One
Four
Two

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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?

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

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Genetic Code and Regulation
In protein synthesis in prokaryotes

the initiating amino acid is N- formyl methionine
the initiating amino acid is methionine
None of these
the initiating amino acid is phenyl alanine

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