To assess for the presence of a genetic disorder, a sample of blood may be drawn and the chromosomes examined. All of a person's genetic material (DNA) is contained in the chromosomes. Any variation from normal in the structure of the chromosomes can cause alterations in body structure or development.
Laboratory test that measures the number and normalcy of chromosomes; also known as cytogenetic testing.
Examination of a person's chromosomes either to determine if that person has an abnormality or to investigate one.
Keywords:  karyotyping, see
See Karyotyping.