Patau syndrome
Patau Syndrome is also known as Trisomy 13 as it is caused my an extra chromosome 13. This is similar to the more well-known Down's syndrome, except for that, the trisomy occurs on chromosome 21. Patau's is the least common non-lethal trisomies.
Symptoms:
These can vary greatly, however almost all suffer from severe mental deficiency.
Physical:
- Polydactyly
- Rocker-bottom feet
- Cleft Palate
- Holoprosencephal