The ONLY way to produce a tiger or lion with a white coat is through inbreeding brother to sister or father to daughter; generation after generation after generation. The kind of severe inbreeding that is required to produce the mutation of a white coat also causes a number of other defects in these big cats.
A. Those little bumps are caused by keratosis pilaris, a common skin condition that usually affects the arms and thighs (although it sometimes appears on the buttocks and face, too). It's caused by a buildup of the protein keratin, which can plug a hair follicle, resulting in a bump.
Milia occur when dead skin becomes trapped in tiny pockets near the surface of your baby's skin. When the surface of the bump wears away, the dead skin is sloughed off and the bump disappears. You don't need to do anything at all.