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4.Principles of Inheritance and Variation
normal
In man, albinism is due to non-synthesis of melanin in the absence of
A
Lysine
B
Tyrosinase
C
Luciferase
D
Melanase
Solution
(b) 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.
Standard 12
Biology
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