|Glossary of Immunological Terms - D|
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These are unfertilized eggs taken from a donor woman and then donated to another woman who needs them. This procedure requires assisted reproductive technology procedure using IVF or GIFT.
This is a genetic disorder caused by the presence of an extra chromosome 21. (Called trisomy 21). Affected children have mental retardation and characteristic features of the body, face and limbs. Affected children also have many medical problems such has heart defects.