Question

The absence of pigment in the eyes, hair and skin is referred to as

• A. Albinism
• B. Colour blindness
• C. Night blindness
• D. Phenylketonuria

Answer 1

Answer: (A)

Albinism

Albinism is a genetic defect of melanin production causing little or no melanin, a natural pigment in the skin, hair, and eyes. Color blindness is the inability or reduced ability to perceive color differences under the normal lighting conditions. Inability or reduced ability to see in relatively low light is night blindness. Phenylketonuria (PKU) is an inborn metabolic error with impaired metabolism of phenylalanine causing its increased blood level. The correct option is A.