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NEET Biology Biotechnology And Its Applications Question Bank Genetic Variation

  • question_answer
    In man, albinism is due to non-synthesis of melanin in the absence of [BHU 2003]

    A) Lysine

    B) Tyrosinase

    C) Luciferase

    D) Melanase

    Correct Answer: B

    Solution :

    In man, enzyme tyrosinase (also inhibited) by excess phenylalanine) is absent due to homozygous recessive autosomal alleles. Melanin or pigment formation from dihydrophenylalanine is stopped. There is lack of pigment in skin, hair and iris.


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