Down Syndrome Kitten. Humans have 23 chromosomes, whereas in cats. Infection neurological (affecting the nervous system) disease trauma congenital (present from birth).
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Physical and behavioral changes or abnormalities in cats can be caused by: Infection neurological (affecting the nervous system) disease trauma congenital (present from birth). Down syndrome is a genetic disease that affects people who are born with an extra chromosome besides the standard 46.