A one-cell electrical cut needs a factor 1.370 response change in one selected adult worm map

We tested a fixed-wiring constraint on passive steady transfer in two adult worm electrical maps. A one-cell cut requires rank-one transfer between the separated groups, even with unknown positive source and target gains. In selected positive wild-type response means from the Randi atlas, adult map 7 had two testable cross blocks at ADAR. Their necessary response change factors were 1.153840 and 1.369731. A four-entry cross-ratio attained the larger rank-one bound. The bound remained at minimum occurrence counts of five and ten. Adult map 8, the union map and the q below 0.01 sample had no role cycles and gave no test. Forty synthetic passive circuits passed the rank check. The result is a necessary model bound, not a full passive fit or a biological rejection beyond error. Pooled calcium means, unmatched animals, missing routes and unknown mean precision limit inference. Original code, proofs, aggregate results, source hashes and retrieval instructions support reproduction. External raw records and derived record tables remain outside the publication.

C. elegans · electrical wiring · passive circuit · graph separator · rank one · cell gains · structure and function