Common configurations for a standard dump truck include the four wheeler. (4x2) which has one powered rear axle, the six wheeler (6x2 or 6x4) with one or two powered rear axles, the tri-axle with one lift axle and two powered axles, and the quad with two lift axles and two powered axles.
But not always: a silent mutation is a type of mutation in the coding region of a gene that doesn't actually change the amino acid sequence of the protein that is made. Below, learn how silent mutations work and why they're no big deal for an organism.
1 most mutations that we observe are. 2  harmful (e.g., many missense mutations) or, at best, 3  neutral, for example:  4 silent mutations encoding the same amino acid. 5  perhaps many of the mutations in the vast amounts of DNA that lie between genes.