12th Class Biology Sample Paper Biology - Sample Paper-7

  • question_answer
    A female in your locality does not menstruate even after puberty. Doctor has told that she lacks one X - chromosome (44+XO). Mention the name of such syndrome alongwith other symptoms.

    Answer:

    The female has Turner's syndrome (44+XO). This disorder caused due to the absence of one X - chromosome. Such persons are sterile females who have rudimentary ovaries, undeveloped breasts, small uterus, short stature, webbed neck, abnormal intelligence and hearing impairment.


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