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GENETIC CODE AND REGULATION

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?

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

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

second base
none of these
first base
third base

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

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

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

propagation code
initiation code
termination code
none of these

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

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

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