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Q.Which is the genotype of Turner's syndrome?

(i) XO
(ii) XXY
(iii) XYY
(iv) XXX
Odisha ChseOdisha CHSE +2 Science Board Exam 2022MCQ· 1mImportance★★★★★
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Turner's syndrome has the genotype XO (45, X0) - a single X and no second sex chromosome.

Turner's syndrome arises from monosomy of the sex chromosome due to non-disjunction during gamete formation. The affected individual has 45 chromosomes: 44 autosomes + a single X (XO / 45, X0). Such individuals are sterile females with underdeveloped ovaries, short stature and lack of secondary sexual …

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