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Genetic Code and Regulation

Genetic Code and Regulation
In prokaryotes, AUG encodes

a stop codon
alanine
N-formyl methionine
methionine

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

third base
none of these
first base
second base

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

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

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Genetic Code and Regulation
Which of the following techniques was carried out by Nirenberg and Matthaei in 1961 to determine the first codon?

Labeled peptide binding to a ribosome
Mixed co-polymer mRNA synthesis
In vitro synthesis of a polypeptide using UUUUU
None of these

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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
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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