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Genetic Code and Regulation

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

third base
none of these
second base
first base

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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
Restriction digests of the rII gene
Frameshift mutagenesis

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

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

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

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

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Genetic Code and Regulation
The genetic code is

species-specific
universal
universal except for rare exceptions in mitochondria and some protozoa
kingdom-specific

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Genetic Code and Regulation
Translation begins

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

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