CLOSE KARYOLOGICAL KINSHIP BETWEEN THE REPTILIAN SUBORDER SERPENTES AND THE CLASS AVES.
D000818:Animals; D001717:Birds; D003585:Cell Biology; D002455:Cell Division; D005823:Genetics; D012104:Reptiles; D012106:Research; D012728:Sex Chromatin; D012911:Snakes
BIRDS; CELL DIVISION; CYTOLOGY; EXPERIMENTAL LAB STUDY; GENETICS; REPTILES; SEX CHROMATIN