Determining the specific characteristics of a cell nucleus presented as karyogram (a diagrammatic representation a complete chromosome set). The material for karyotyping can be obtained from almost any tissue including amniotic fluid, blood, bone marrow, and tissue from the placenta. With such material, a test can be performed to identify any structural changes in chromosomes.
See Amniotic fluid, Chromosome, Down’s syndrome, Edwards syndrome, Karyotype, Nucleus (of a cell), Placenta