(a)Explain why rotenone ingestion is lethal to some insect and fish species. (b) Explain why antimycin A is a poison. (c) Given that rotenone and antimycin A are equally effective in blocking their respective sites in the electron-transfer chain, which would be a more potent poison

i think it is dna, i'm not totally sure but i think it might be.

the real answer is b. scintillation counter

during the process of dna replication, brdu can replace thymidine and incorporate into the newly synthesized dna, cell proliferation thus can be reflected in the extent of brdu incorporation.

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