10 letters · 19 points in Scrabble
noun a threadlike strand of DNA in the cell nucleus that carries the genes in a linear order
origin19th century: from German Chromosom, ultimately from Ancient Greek χρῶμα (khrôma, “colour”) + σῶμα (sôma, “body”) (because they are stained under the microscope). Equivalent to chromo- + -some.
Etymology from Wiktionary, CC BY-SA 3.0