Relating to the genetics of cells and the relationship between chromosomes and inherited traits.
From 'cytogenesis' or 'cytogeny' plus '-etic' (relating to). Describes the field that bridges cell biology and genetics, studying how chromosomes carry hereditary information.
Cytogenetics literally brought chromosomes into focus—it's the field that proved chromosomes are made of genes and showed us how genetic information is physically arranged on DNA. This made genetics concrete and visible under a microscope.
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