- A) Azotobacter paspali
- B) Rhizobium
- C) Nostoc
- D) Bradyrhizobium
Microbiology MCQ
Total MCQ:
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MCQ Quiz on Microbiology
172 Who provided the evidence that bacteriophage nucleic acid but not protein enters the host cell during infection
- A) Alfred D. Hershey & Leonard Tatum in 1951
- B) Alfred D. Hershey & Zindar Lederberg in 1951
- C) Alfred D. Hershey & Martha Chase in 1952
- D) Alfred D. Hershey & Macleod in 1952
173 Spirulina belongs to
- A) Xanthophyceae
- B) Cyanophyceae
- C) Rhodophyceae
- D) Pheophyceae
174 The first antibody to contact invading microorganisms was
- A) IgG
- B) IgM
- C) IgA
- D) IgD