Question

Choose the correct option-

Albinism is a congenital disorder resulting from the lack of which enzyme?

• A. Xanthine oxidase
• B. Tyrosinase
• C. Fructokinase
• D. Catalase

Answer 1

The correct option is B

Tyrosinase

The correct option is B.

Explanation of correct option

1. Albinism is a genetic disorder where melanin production is affected.
2. Due to a defect in the enzyme tyrosinase, tyrosine cannot change into melanin pigment.

Explanation of incorrect option

Option A

1. Deficiency in xanthine oxidase enzyme causes xanthinuria.
2. This affects the kidneys, and excess Xanthine is lost in the urine.

Option C

1. Deficiency in fructokinase enzyme affects the liver.
2. This results in the excretion of fructose in urine.
3. The individuals with this deficiency show elevated blood fructose levels after ingestion of sucrose, sorbitol, or fructose.

Option D

1. Deficiency in catalase enzyme results in acatalasemia.
2. These individuals show a reduction in catalase activity.
3. They are predisposed to various age-related diseases like neoplasms, atherosclerosis, and diabetes.

Final answer:

Albinism is a congenital disorder resulting from the lack of tyrosinase.