Q:

All the following are characteristicfeatures of fragile X chromosome of a 3-year-old male child EXCEPT

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All the following are characteristicfeatures of fragile X chromosome of a 3-year-old male child EXCEPT


  1. intellectual disability
  2. autistic behavior
  3. macroorchidism
  4. hyperextensible finger joints
  5. characteristic facial features

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(C). The macroorchidism may not be evident until puberty. The facial features, which include a long face, large ears, and a prominent square jaw, become more obvious with age.

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