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.
If a strand of DNA undergoes a point mutation in the codon CAA that changes it to CAG, it would still code for valine. This type of substitution is called a synonymous or sense mutation; it is also known as a silent mutation because there is no change in the amino acid sequence. (Find out how silent mutations can still have an effect on the gene and its resulting protein.). slide 3 of 5.