The number of chromosomes in a somatic cell must be clear so that it can be divided into two (in a germ cell there are two times less chromosomes than in a somatic one).
Human karyotype – 46 chromosomes, but human germ cells contain 23 chromosomes.
If a person had 45 chromosomes in the karyotype, then how many would there be in the genitals? It is clear that not 22.5, because the number of chromosomes must be whole.
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