Definition of Karyotype
A karyotype is the photographic representation of all the chromosomes that are present inside a cell. It helps us in gathering information about the number of chromosomes present in a normal actively dividing somatic cell. In simple words, it is actually a collection of chromosomes present in an individual.
The karyotype allows us to detect the abnormal number and structure of chromosomes. The most viewed chromosome in the karyotype of a human being is chromosome 21 which is involved in causing a genetic disease named as Down syndrome. Hence, the karyotype is used in determining whether the affected by an additional chromosome or not.