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Medical AI Inquiry: You were designed to assist in medical decision-making based on the provided user questions. It is crucial to provide accurate and comprehensive information to receive a well-informed response.
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True about Lyonisation of X chromosome:
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The correct answer is  Answer- A. Inactivation of X chromosome only in somatic cellIn female, one of two X-chromosome (either paternal or maternal) is inactivated during embryogenesis as stated in Lyon hypothesis.This inactivation is passed to all the somatic cell while the germ cells in the female remain unaffected.