EXPLANATION OF CHROMOSOME DISORDERS Cri-du-chat Babies with the "cry of the cat" syndrome have a cry which sounds like that of a cat in distress because the infant's larynx is improperly developed. The cause of this condition is a deletion of about half of the short arm of chromosome number five. Cri-du-chat babies are severely mentally disabled, have a small cranium, a small jaw and a moon-shaped face. The incidence of this syndrome is 1/100,000 live births. **Karyotype: 46XX or 46XY…
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