planarian regeneration can be profoundly affected by changes in bioelectric gradients, given a difference in electrical gradients at anterior and posterior regions

Biology Oct 12, 2020

planarian regeneration can be profoundly affected by changes in bioelectric gradients, given a difference in electrical gradients at anterior and posterior regions. This would potentially lead to a wrong version of those newly-grown flatworm individuals, which is known as the 'switching mechanism' in morphology.
Can you give some examples of switches in physical sciences and in biomedical sciences.