Mosaicism is a form of non-Mendelian inheritance wherein two or more cell populations with different genotypes exist in an organism, derived from a single zygote, as a result of experimental manipulation or to faulty distribution of genetic material during mitosis.
(December 2013) The helix piercing is a perforation of the helix or upper ear (cartilage) for the purpose of inserting and wearing a piece of jewelry. The piercing itself is usually made with a small gauge hollow piercing needle, and typical jewelry would be a small diameter captive bead ring, or a stud.
LINK / CITE ADD TO WORD LIST. noun. The definition of a helix is a spiral, or something shaped like a spiral. An example of a helix is the shape inside the shell of a chambered nautilus sea creature.elix. pl. heâ²lixes or helâ²iÂ·cesÂ·. 1  any spiral, as one lying in a single plane or, esp., one moving around a right circular cone or cylinder at a constant angle, as a screw or bolt thread does. 2  Anat. the folded rim of cartilage around the outer ear.