behavior/neurological
limb grasping
(
J:82238
)
• from approximately 4 weeks of age, mutant mice draw their hind limbs close to the body when picked up by the tail and fail to withdraw a hind limb that is gently pulled
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muscle
muscle spasm
(
J:82238
)
• from approximately 4 weeks of age, mutant mice exhibit hind limb spasms; mild spasms cause apparently hesitant movement, while intense spasms can persist longer than 2 seconds and cause the limb either to be drawn close to the body or extended backward or to the side
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