Process of analyzing and classifying the chromosomes of a cell and preparing a karyotype diagram; used in the diagnosis of certain chromosomal abnormalities (e.g., Down’s syndrome).
Analysis of chromosomes; performed on fetal cells obtained by amniocentesis to detect the sex and various genetic factors or diseases of the unborn child. Karyotyping is also performed on children and young adults to detect genetic abnormalities and diseases.
Chromosome analysis. Medical diagnostic tests used to identify chromosomal abnormalities as the cause of malformation or disease. Karyotyping can be conducted on samples of blood, bone marrow, amniotic fluid, or placental tissue. Cells are stained, viewed under a microscope, and then photographed to provide a karyotype showing the arrangement of the chromosomes, which sometimes can indicate the presence of abnormalities.