1) The analysis of chromosomes 
Producing a karyotype for a cell or a cell line. ... (27 Sep 1997) ... 
(kar´e-o-tīp″ing) laboratory analysis of an individual's karyotype of chromosomes to find abnormal ones, such as those with missing, extra, or rearranged sequences that might be linked to disease states, birth defects, or other conditions . It can be done on a fetus with cells obtained by amniocentesis or cho...
A test performed to analyse chromosomes for the presence of genetic defects.
Karyotyping: The preparation, analysis, and interpretation of a karyotype.
the analysis of chromosomes.