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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.
1. What is a karyotype? The name karyotype is given to the set of chromosomes of an individual, usually when visualized and identified under the microscope. The visualization generally takes place when the cells are undergoing the initial phases of cell division, so tha the chromosomes may be seen already replicated and condensed.