Chromosomes [91], [95], [96], [98], [130], [131], [132]Cleavage [21], [22], [94]Clover butterfly [62]Club wing [69], [70], [108]Colias philodice [62]Color blindness [77], [125]Comb of Drosophila [103]Combs of fowls [33], [54]Comparative anatomy [7], [8], [9], [14]Corn [150], [153], [172]