Types of Mutations

"Genetics doesn't end with a null mutant." George Weinstock

Some examples of how different types of mutations affect the DNA and corresponding protein sequence are shown below.

The effects of changes, additions, or deletions on the meaning of a sentence is nice analogy for the effects of mutations on the protein sequence. Check out the following example contributed by Deanna Raineri.

Note that different types of mutations have different effects on the gene product and on the resulting phenotype as shown in the table below.

Return to Microbial Genetics supplement.

Please send comments, suggestions, or questions to smaloy@sciences.sdsu.edu
Last modified July 2, 2004