A reading frame consists of groups of 3 bases that each code for one amino acid<span>. A frameshift mutation shifts the grouping of these bases and changes the code for amino acids. The resulting protein is usually nonfunctional. Insertions, deletions, and duplications can all be frameshift mutations.
Hope this helps.</span>
B. widely accepted as true. It can be supported by results that are repeatable. It is widely accepted as true, but not proven as a fact.
Flatworm get most of their oxygen through diffusion.
