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प्रश्न
A boy has the blood group O. What is true of the inheritance of this blood group in his case?
पर्याय
His mother should be with AB blood group
Both his parents could be heterozygous A group
His father could be homozygous B group
His mother could be homozygous A group
MCQ
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उत्तर
Both his parents could be heterozygous A group
Explanation:
Blood group O means the genotype must be ii (homozygous recessive). For a child to have blood group O, they must inherit an i allele from each parent. Therefore, both parents must have at least one i allele, meaning they could be heterozygous A (IAi) or heterozygous B (IBi), but not blood group AB or homozygous A or B.
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