This preview shows page 1. Sign up to view the full content.
Unformatted text preview: 60 Embryo Gastrulation
K e y T y p e s o f C e l l M o v e m e n ts
1 . In v a g i n a ti o n
2 . In v o l u ti o n
3 . C o n v e r g e n c e - e x te n s i o n
4 . E p ib o ly Gastrulation by Invagination Example: Sea urchin Sea Urchin Gastrulation occurs
mainly by invagination In v a g i n a ti o n f o r m s th e fr o g b l a s to p o r e Involution in frog embryo Looking ahead: Convergence-extension
elongates the mesoderm in the A-P direction Convergence-extension of cells
expressing brachyury Epiboly involution Neural Induction Noggin
Xnr3 Fig 3.62...
View Full Document
This note was uploaded on 11/11/2012 for the course ESL 100 taught by Professor He during the Spring '12 term at SUNY Stony Brook.
- Spring '12