The study of chromosomes, which are long strands of DNA and protein that contain most of the genetic information in a cell. Cytogenetics involves testing samples of tissue, blood, or bone marrow in a laboratory to look for changes in chromosomes, including broken, missing, or extra chromosomes. Changes in certain chromosomes may be a sign of a genetic disease or condition or some types of cancer. Cytogenetics may be used to help diagnose a disease or condition, plan treatment, or find out how well treatment is working.
Source: NCI Dictionary of Cancer Terms
The study of the structure, function, and abnormalities of human chromosomes.
Source: NCI Dictionary of Cancer Terms2003-01-26 Date last modified: 2016-09-01