noun Date: 1950 a readily recognizable genetic trait, gene, DNA segment, or gene product used for identification especially when closely linked to a trait or genetic material that is difficult to identify
GENETIC MARKER
Meaning of GENETIC MARKER in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012