mortality/aging
• at E11-11.5 most of the abnormal embryos are moribund
• although there is an allantoic connection, death is shortly after E11.5 when development ceases
|
embryo
• floor plate may be present even in absence of the notochord
|
growth/size/body
cardiovascular system
• 15-20 percent of homozygous embryos have heart defects
|
• the heart tube leaves the body cavity and makes two right angles before returning to the body cavity
• in may cases the heart tube does not fold
|
limbs/digits/tail
absent tail
(
J:29666
)
• E10.5 embryos are tailless
|