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Genetic Code and Regulation

Genetic Code and Regulation
In prokaryotes, AUG encodes

methionine
N-formyl methionine
alanine
a stop codon

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Genetic Code and Regulation
The sequence of one strand of DNA is: 5' ATTGCCA 3', what is the sequence of the other strand?

5' TGGCAAT 3'
5' UAAGCCU3'
5' TAACGGT 3'
5' ATTGCCA 3'

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Genetic Code and Regulation
AUG codes for methionine act as a

propagation code
initiation code
elongation code
termination code

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

One
Three
Two
Four

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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
Frameshift mutagenesis
Gel electrophoresis

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Genetic Code and Regulation
In protein synthesis in prokaryotes

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

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