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Genetic Code and Regulation

Genetic Code and Regulation
Translation begins

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

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Genetic Code and Regulation
How many different codons are possible?

64
3
20
An infinite number

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Genetic Code and Regulation
In prokaryotes, AUG encodes

N-formyl methionine
a stop codon
alanine
methionine

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Genetic Code and Regulation
AUG codes for methionine act as a

initiation code
elongation code
termination code
propagation code

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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?

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

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

none of these
first base
second base
third base

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