Q. One gene-one enzyme relationship was established for the first time in
A) Salmonella typhimurium
B) Escherichia coli
C) Diplococcus pneumoniae
D) Neurospora crassa
Explanation
[Solution from source] Beadle and Tatum studied nutritional mutants of the mould Neurospora crassa and showed each gene controls one enzyme. Diplococcus pneumoniae was used by Griffith for transformation, and E. coli for lac operon and replication studies. Answer (4).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.