to cause to hold or exhibit a particular bias; to influence, especially unfairly: a tearful plea designed to bias the jury; a survey biased toward highly educated people. 11.
Moles are caused when cells in the skin, called melanocytes, grow in clusters or clumps. Melanocytes are distributed throughout your skin and produce melanin, the natural pigment that gives your skin its color.
Some moles are present at birth, although most develop during the first 30 years of life. People with fair skin often have more moles than people with darker skin. You are more likely to develop lots of moles, or a certain type of mole, if they are common in your family.