Search
Filter by Topic
- (-) Remove Organisms filter Organisms
- (-) Remove Processes filter Processes
- (-) Remove Theories filter Theories
Filter by Format
- (-) Remove Graphics filter Graphics
Displaying 1 - 1 of 1 items.
Frog Embryo in the Blastula Stage
Illustration of the animal-vegetal gradient in Xenopus laevis ( African clawed frog) eggs after fertilization. During fertilization, the sperm s point of entry determines the future dorsal side (shaded) and ventral side (unshaded) of the embryo. The prospective ventral side of the embryo forms on the side where the sperm enters while the prospective dorsal side forms opposite the sperm s point of entry.
Format: Graphics