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Genetic Code and Regulation

Genetic Code and Regulation
Translation begins

at the replication fork
in nucleus
on the lagging strand
at the start codon

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Genetic Code and Regulation
In prokaryotes, AUG encodes

a stop codon
alanine
methionine
N-formyl methionine

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Genetic Code and Regulation
In protein synthesis in prokaryotes

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

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Genetic Code and Regulation
How many different codons are possible?

20
3
An infinite number
64

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Genetic Code and Regulation
AUG codes for methionine act as a

elongation code
termination code
propagation code
initiation code

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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?

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

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