You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is True about Lyonisation of X chromosome: and explain in detail?
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.