A mother who is blood type O can only pass an O allele to her son or daughter. A father who is blood type AB could pass either an A or a B allele to his son or daughter. This couple could have children of either blood type A (O from mother and A from father) or blood type B (O from mother and B from father).
At night, humans can use flashlights to spot animals that possess tapetum lucida by causing a phenomenon called eye shine.. Eye shine is the iridescent glow observed in animals when light is shone into their eyes, which floods the eye with light that is then reflected by the tapetum lucidum.
Why do human eyes go black (yes the white part too) after death? Answer Wiki. Quora User, Medical Student and a big, quivering bundle of curious nerves! After death, the cornea (the transparent front part of the eye that covers the iris and pupil) loses its glistening appearance and becomes dull & opaque.