
Molecular Biology 5th Edition by Robert Weaver
Edition 5ISBN: 978-0073525327
Molecular Biology 5th Edition by Robert Weaver
Edition 5ISBN: 978-0073525327 Exercise 2
How many proteins of average size could be encoded in a virus with a DNA genome having 12,000 bp, assuming no overlap of genes
Explanation
The average protein contains the molecular mass of 40000 Daltons as well as the amino acid's average molecular mass is 110 Daltons. Thus, the average proteins contain 364 amino acids. Provided that three nucleosides are needed to encode one amino acid it needs as a minimum 1092 nucleoside so that it encodes average protein.
It is quite known that a codon's triplet is needed for the encoding of single amino acid. Therefore, there would be
total triplets likely from this DNA. Additionally, the info proposes that the protein's average size is 364 amino acids. Therefore, the total number of peptides which can be produced using 4000 amino acids would be:3
Thus, a viral genome of the 12000 bp will thus be capable to encode
proteins.
It is quite known that a codon's triplet is needed for the encoding of single amino acid. Therefore, there would be



Molecular Biology 5th Edition by Robert Weaver
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