Final answer:
Flaccid paralysis is the likely symptom caused by a toxin affecting acetylcholine release, with botulinum toxin as the primary example causing this condition by inhibiting neuromuscular function.
Step-by-step explanation:
The likely neurological symptom caused by a toxin's effect on acetylcholine release is flaccid paralysis. This is because toxins like botulinum toxin, which is produced by Clostridium botulinum, prevent the release of acetylcholine at the neuromuscular junction.
Without acetylcholine to trigger muscle contractions, the muscles become weak and flaccid, resulting in paralysis. It is essential to differentiate this from tetanus toxin, produced by Clostridium tetani, which causes spastic paralysis by preventing the release of inhibitory neurotransmitters such as GABA and glycine, leading to continuous muscle contractions.