- It is caused by an error in cell divison leads to an ambryo with three copies of chromosome 21.
- Familiar down syndrome is also noted.
- Some user use inherited by mysticism.
For couples who have one child with down syndrome due to translocation trisomy 21, there one chances that future children will have down syndrome.
- Single palmas increase mental retardation.
- Hypotonics larger protruding tongue.
- B small mase with low bridge, low set cars, short thick neck.
- Congted heart disease.
- Epicanthic fold.
- Congenital cuteeseect.
- Strabismus muopiu.
- Squint.
- Infertile glassccessa.
Early screening method during anthenesfeel period present the outecune.
