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  4. Sickle-cell anaemia is an autosomal linked recessive trait that can be transmitted from parents to the offspring when both the partners are carriers for all the genes or heterozygous. The disease is controlled by a single pair of allele, Hb A and Hb S . Identify X, Y and Z.

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Q. Sickle-cell anaemia is an autosomal linked recessive trait that can be transmitted from parents to the offspring when both the partners are carriers for all the genes or heterozygous.
The disease is controlled by a single pair of allele, $Hb ^{ A }$ and $Hb ^{ S }$. Identify $X, Y$ and $Z$.Biology Question Image

Principles of Inheritance and Variation

Solution:

Correct answer is (a) (X) - GTG ,(Y) - CAC ,(Z) - Val (GUG)