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1. karyotype-the appearance of the chromosomal makeup of a somatic cell in an individual or species (including the number and arrangement and size and structure of the chromosomes). physical composition, composition, make-up, makeup, constitution-the way in which someone or something is composed. Translations.
Karyotype is used to study chromosomal aberrations, cellular function, or taxonomic relationships, or to gather information about past evolutionary events. Related forms: karyotypical (adjective), karyotyping (verb: present participle), karyotyped (verb: simple past).genetics) The characterization of the chromosome complement of a species (such as the shape, type, number, etc. of chromosomes). verb. To arrange and classify the chromosome complement of an organism based on the number, size, shape, and other characteristics of the chromosomes. Supplement.