BIOCHEMISTRY
8th Edition
ISBN: 9781319296186
Author: BERG
Publisher: MAC HIGHER
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Chapter 28, Problem 13P
Interpretation Introduction
Interpretation:
A single-stranded RNA from tobacco mosaic virus was treated with a chemical mutagen and mutants were obtained having serine or leucine instead of proline at specific position.Further treatment of these mutants with same mutagen yielded phenylanaline at this position. Hence, the plausible codonassignments for the given four amino acids are to be depicted.
Concept introduction:
A codonis defined as the sequence ofthree nucleotides which encode for anamino acid duringprotein synthesis or translation.For example,CCT, and CTT are the codons which codes for proline and leucine respectively.
A chemical mutagen is a substance that can cause alteration of the nitrogenous base incorporated in the DNA.
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