Значение на trisomy 21 на български

• 0 the most common form of Down's syndrome (= a genetic condition associated with learning difficulties in which a person is born with an extra chromosome) that is caused by there being an extra copy of the chromosome number 21 in the body's cells:

  • Their first child has trisomy 21 and they want to know the risk of having another child with Down's syndrome.

  • Pregnant women can screen for Trisomy 21, a chromosomal abnormality, through a blood sample.