mortality/aging
• some newborns with severe spina bifida die shortly after birth
|
• fewer than 50% of offspring from heterozygous intercrosses are heterozygotes
|
limbs/digits/tail
• a short, curled tail is the most common phenotype seen for this mutation with incomplete penetrance
|
short tail
(
J:161923
)
curly tail
(
J:161923
)
embryo
spina bifida
(
J:161923
)
• observed to varying degrees of severity in some, but not all, affected mice and some with mild spina bifida have lived to adulthood and reproduced
|
nervous system
spina bifida
(
J:161923
)
• observed to varying degrees of severity in some, but not all, affected mice and some with mild spina bifida have lived to adulthood and reproduced
|
reproductive system
• some heterozygotes have closed vaginas
|
behavior/neurological
N |
• no abnormal head movement
|
hearing/vestibular/ear
N |
• auditory brainstem response is normal in 2 female and 2 male heterozygotes
|