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Genetic Code and Regulation

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

termination code
initiation code
none of these
propagation code

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

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

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

third base
first base
second base
none of these

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Genetic Code and Regulation
AUG codes for methionine act as a

elongation code
initiation code
termination code
propagation code

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Genetic Code and Regulation
In protein synthesis in prokaryotes

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

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Genetic Code and Regulation
Which of the following has been used as an evidence that primitive life forms lacked both DNA and enzymes?

All of these
Advanced cells lack RNA
RNA can both code genetic information and act as a catalyst
DNA and enzymes are only present in the most advanced cells

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