A. Wild types have more craniofacial length than Twist 1
+/− unexposed (p<0.001) and exposed (p=0.027) at 15 days, exposed
at 20 days (p=0.032), and both unexposed (p=0.002) and exposed (p<0.001)
at 25 days. B. Twist 1 +/− unexposed have greater
craniofacial width than exposed (p=0.012). C. Wild types have greater cranial
capacity than unexposed at 15 days (p=0.05), and exposed at 20 and 25 days
(p<0.001). D. Wild types have greater cranial length than unexposed
(p<0.001) and exposed (p=0.05) at 15 days, exposed at 20 days (p=0.001),
and unexposed (p=0.002) and exposed (p<0.001) at 25 days. E. Wild types
have greater cranial width than unexposed at 15 days (p=0.028), and exposed at
20 (p=0.001) and 25 days (p=0.001). F. Twist 1 +/−
unexposed have a larger cranial index than wild type (p=0.023), and both
unexposed and exposed have larger cranial indices than wild type at 25 days
(p=0.001 and p<0.001). (*) Wild type different from unexposed and
exposed. ($) wild type different from exposed. (#) Unexposed is different from
exposed. (@) wild type different from unexposed.