karyotype
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The characteristics, or karyotype, of the chromosomes vary according to species. The kangaroo has 12 chromosomes, the hawkweed has 8, and a human being has 46.
In biology, the set of chromosomes characteristic of a given species. It is described as the number, shape, and size of the chromosomes in a single cell of an organism. In humans, for example, the karyotype consists of 46 chromosomes, in mice 40, crayfish 200, and in fruit flies 8.
The diagrammatic representation of a complete chromosome set is called a karyogram.
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