Gonadal growth in chick embryos.
D000367:Age Factors; D000818:Animals; D001717:Birds; D002642:Chick Embryo; D005260:Female; D006066:Gonads / Q000254:growth & development*; D008297:Male; D009929:Organ Size; D010053:Ovary / Q000033:anatomy & histology; D010784:Photomicrography; D012730:Sex Chromosomes; D012737:Sex Factors; D013737:Testis / Q000033:anatomy & histology