sex chromatin defined in 1951 yearsex chromatin - sex chromatin (barr body);
sex chromatin - Small heterochromatin body characteristic of some interphase nucleus of homogametic sex of some animals including human females. Derives from one of the two X chromosomes. Number of bodies is one less than number of X chromosomes. Particularly evident in cases of abnormalities amongst sex chromosomes, an XXX individual having two, an XXXX three.
near sex chromatin in Knolik
definition of word "sex chromatin" was readed 878 times