FRAXA SYNDROMES
\fɹˈaksə sˈɪndɹə͡ʊmz], \fɹˈaksə sˈɪndɹəʊmz], \f_ɹ_ˈa_k_s_ə s_ˈɪ_n_d_ɹ_əʊ_m_z]\
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A condition characterized genotypically by mutation of the distal end of the long arm of the X chromosome (at gene loci FRAXA or FRAXE) and phenotypically by cognitive impairment, hyperactivity, SEIZURES, language delay, and enlargement of the ears, head, and testes. MENTAL RETARDATION occurs in nearly all males and roughly 50% of females with the full mutation of FRAXA. (From Menkes, Textbook of Child Neurology, 5th ed, p226)
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