Chick Embryo - Whole Mount of 4 Hours of Incubation Chick embryo: Whole mount. 4 hours of incubation. Comments Four hours of incubation of the egg shows differentiation of the blastodisk into area pellucida and area opaca. Egg has cephalic end and caudal end. One quadrant of area pellucida becomes…
DEVELOPMENT OF FROG Frog : Structure of Ovum Comments The ovum is rounded in shape and covered by albumen layer, chorion and vitelline membrane. It measures 1.6 rom in diameter One half of the zygote is pigmented black called animal hemisphere and the remainder is almost white. Vitelline membrane swells…
Spermatogenesis Spermatogenesis can be studied through histological preparation of tissues (testis) or by squash technique or heat dry Giemsa technique. For histological studies, testis of Albino rat is taken out after chloroforming rat. After fixing testis is 10% formaline, its sections are cut through microtomy process. Stain sections in haematoxylin…