Cri du chat in adults
This is so that, when an egg and a sperm meet during conception, the child that is produced also has 46 chromosomes in each cell.New body cells are produced for growth and repair by cells dividing, producing two 'daughter' cells.The other 22 pairs of chromosomes are numbered according to size with 1 being the longest pair and 22 being the shortest pair of chromosomes.
Rarely, there is a problem with the child's chromosomes.Not all babies with a missing short arm of chromosome 5 will develop cri du chat syndrome.Some will have only very mild abnormal features or have no abnormal features at all.Other features may include learning difficulties and slow growth and development. However, physiotherapy, speech and language therapy, and surgical treatment for some abnormal features may be needed.
Many affected children will survive well into adulthood.They carry genetic information in the form of genes.