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Genetic Code and Regulation

Genetic Code and Regulation
In prokaryotes, AUG encodes

N-formyl methionine
methionine
a stop codon
alanine

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

none of these
third base
second base
first base

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Genetic Code and Regulation
How many different codons are possible?

3
An infinite number
20
64

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Genetic Code and Regulation
Bacterial protein called catabolic activator protein (CAP) is an example of

None of these
second type of positive control of gene expression
positive control of gene expression
negative control of gene expression

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Genetic Code and Regulation
Crick demonstrated that the genetic code involved three bases and suggested that the code was degenerated. What experimental technique Crick conducted to suggest genetic code degeneration?

Density gradient centrifugation
Gel electrophoresis
Frameshift mutagenesis
Restriction digests of the rII gene

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Genetic Code and Regulation
AUG codes for methionine act as a

elongation code
termination code
initiation code
propagation code

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