Other helpful Mandarin phrases: While Mandarin has a wealth of generalized insults for the intellectually stunted (Sha gua means retard--literally stupid melon), it really brings the heat with insults that don't sound at all insulting.
frameshift mutation / frame-shift mutation; frameshift. A frameshift mutation is a genetic mutation caused by a deletion or insertion in a DNA sequence that shifts the way the sequence is read. A DNA sequence is a chain of many smaller molecules called nucleotides.
LECTURE 9 Frameshifts, deletions and dynamic mutations. 1. Frameshifts. a. Frameshift mutation are caused by the addition or subtraction of nucleotides from the DNA sequence. Because the genetic code is read in triplets, addition or subtraction of 1 or 2 nucleotides causes a shift in the reading frame.