Final answer:
Cri-du-chat syndrome in humans is characterized by a deletion of most of the short arm of chromosome 5 (5p- deletion). Infants with this syndrome emit a characteristic high-pitched cry, which gives the disorder its name, 'cry of the cat'. Cri-du-chat syndrome results from a structural rearrangement in chromosomes and is marked by physical and mental abnormalities.
Step-by-step explanation:
Cri-du-chat syndrome in humans is characterized by a genetic constitution designated as a deletion of most of the short arm of chromosome 5 (5p- deletion).
This syndrome is associated with nervous system abnormalities and identifiable physical features. Infants with this syndrome emit a characteristic high-pitched cry, which gives the disorder its name, 'cry of the cat'.
Cri-du-chat syndrome results from a structural rearrangement in chromosomes, specifically a deletion of genetic material on chromosome 5, and it is marked by both physical and mental abnormalities.