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Identify the wrong statement with reference to the gene 'I' that controls ABO blood groups :

(1) The gene (I) has three alleles.

(2) A person will have only two of the three alleles.

(3) When I​​​​​​A and  I​​​​​B are present together, they express same type of sugar.

(4) Allele 'i' does not produce any sugar.

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Ans : (3) When I​​​​​​A and I​​​​​​B are present together, they express same type of sugar.

Explanation :

When I​​​​​​A  and I​​​​​​B are present together, both express their own types of sugars, not same type of sugar.

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