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.
The common helix is the curve formed by the thread of the ordinary screw. It is distinguished from the spiral, all the convolutions of which are in the plane. Helix (noun). a caulicule or little volute under the abacus of the Corinthian capital. Helix (noun). the incurved margin or rim of the external ear.