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Genetic Code and Regulation

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

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

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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?

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

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Genetic Code and Regulation
How many different codons are possible?

An infinite number
20
64
3

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

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

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Genetic Code and Regulation
AUG codes for methionine act as a

termination code
initiation code
elongation code
propagation code

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Genetic Code and Regulation
In protein synthesis in prokaryotes

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

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