Fig. 2.
Histological sections of lacZ-stainedSCLlacZ/lacZ embryos. (A) Section through headfold and trunk of E8 embryo showing lacZ staining in the angioblasts forming the cerebral vascular plexus (cvp) and the dorsal aorta (da). Staining in (B) endocardium (en) and (C) somitic arteries (sa) in an E8.5 embryo. Note the large number of apoptotic cells (ap) in the neural tube in (C). Original magnification: (A), ×200; (B and C), ×400.