Is mutagenic chemical have a life span?

S.M. Hossain Al Zadid @Sm-Hossain-Al-Zadid

22 December 2018 0 4K Report

I am going to do chemical mutation of fungus by NTG, EMS, DMS, DES, EtBr. These are about 2-3 years old. Is these usable or still have enough efficiency?

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