Germ Cells
The Germ-Plasm: a Theory of Heredity (1893), by August Weismann
Friedrich Leopold August Weismann published Das Keimplasma: eine Theorie der Vererbung (The Germ-Plasm: a Theory of Heredity, hereafter The Germ-Plasm) while
The Cell in Development and Inheritance (1900), by Edmund Beecher Wilson
"On the Permanent Life of Tissues outside of the Organism" (1912), by Alexis Carrel
Epithelium
Alexis Carrel's Immortal Chick Heart Tissue Cultures (1912-1946)
Gastrulation in Mus musculus (common house mouse)
As mice embryos develop, they undergo a stage of development called gastrulation. The hallmark of vertebrate gastrulation is the reorganization of the
Apoptosis in Embryonic Development
Apoptosis, or programmed cell death, is a mechanism in embryonic development that occurs naturally in organisms. Apoptosis is a different process from cell necrosis, which is uncontrolled cell death usually after infection or specific trauma. As cells rapidly proliferate during development, some of them undergo apoptosis, which is necessary for many stages in
The Carapacial Ridge of Turtles
Two main elements characterize the skeletal morphology of turtles: the carapace, the upper shell, and the plastron, the lower shell. The upper shell distinguishes
Curt Jacob Stern (1902-1981)
