Its a Genetic thing, in which the albino child has received the Dominant albino trait and the sibling has not.
The cell membrane is surrounded partially or totally by the Endoplasmic Reticulum which are membranes that extend along the nuclear membrane.
Blood supply to the spleen. The spleen's blood is supplied by the splenic artery. This artery is one of the three large arteries that branch from the celiac trunk ( also called the celiac artery ).
The celiac trunk is the first major branch coming from the abdominal aorta.
Hope this helps have a nice day
