Origin: Anc Greek
χρώμα*/chroma(=color)<χρώννυμι <χειρ/hir(=hand) <χρίπτω/hripto(=touch or anoint)
-ίδιο/idio(=-id, suffix that is used as diminutive of a noun )
The term introduced in 1900 by McClung (1779 – 1848) who proposed the term “chromatid” for each of the four threads making up a chromosome-pair at meiosis.
The individual and identical daughter-chromosomes (strand) into which each chromosome is divided in all nuclear divisions.