kromoszómán

Kromoszómán is the locative singular form of kromoszóma in Hungarian, used to indicate a position on a chromosome. In genetics and biology, the term describes where a gene, marker, or sequence is located on a chromosome. It is commonly found in scientific sentences such as “A gén a kromoszómán helyezkedik el” (The gene is located on the chromosome) or “A gén a 5-ös kromoszómán található” (The gene is on chromosome 5). The form is part of standard Hungarian grammar and is used with articles and numerals to specify chromosomal location.

In practical use, kromoszómán functions as a location descriptor within genetic maps, genome annotations, and comparative genomics. It emphasizes spatial relationship rather than identity, and it can be combined with numbers or descriptors to indicate a specific chromosome, such as kromoszómán 5 or a kromoszómán belüli region (a region on the chromosome).

Etymology and form: the word derives from kromoszóma (chromosome) with the Hungarian locative suffix -n, producing kromoszómán. The root kromoszóma itself comes from Greek chroma (color) and soma (body), a historic reference to the stained appearance of chromosomes in cytogenetic preparations. The locative form is one of several grammatical cases used in Hungarian to express location or position.

See also: kromoszóma, gén, genetika, lokusz.