Multiple choice

Turner's syndrome, a human adnormality in which the affected individuals are phenotypically females but have rudimentary sex organs and mammary glands is caused by the absence of

  1. One X-chromosome

  2. Y-chromosome

  3. Both X-chromosome

  4. XY-chromosome
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Explanation

Turner’s syndrome is a human adnormality in which the affected individuals are pheotypically females but have rudimentary sex organs and mammary glands is caused by the absence of one X-chromosome. Turner’s syndrome is characterised by monosomy of XO type. 

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