Campbell Biology, Books a la Carte Edition & Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology
Campbell Biology, Books a la Carte Edition & Modified Mastering Biology with Pearson eText -- ValuePack Access Card -- for Campbell Biology
1st Edition
ISBN: 9780133936667
Author: Jane B. Reece, Lisa A. Urry, Michael L. Cain, Steven A. Wasserman, Peter V. Minorsky, Robert B. Jackson
Publisher: PEARSON
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Chapter 17, Problem 10TYU
Summary Introduction

To propose: An evolutionary explanation for the statement that most amino acids are coded by a similar set of codons.

Concept introduction:

The genetic information of DNA is based on the nucleotide base sequences. These sequences are transcribed into mRNA triplets and are called codons. Genetic code has 64 codons; thus, codon is a basic unit of the genetic code. Three codons are stop codons. There are 61 codons that code for 20 amino acids. The redundancy of a genetic code accounts for this.

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