Yellow ear rot of wheat is caused by:
A) Anguina
B) Corynebacterium
C) Both (A) & (B)
D) Heterodera
Lichen is an association between:
A) Algae and Fungus
B) Bacterium and Fungus
C) Fungus and Virus
D) Fungus and Nematode
Wrong information about Powdery mildew is:
A) Subdivision = Ascomycotina
B) Order = Erysiphales
C) Family = Melanconiaceae
D) All of the above
Death of tissue in virus infected plant described as:
A) Mottling
B) Mosaic
C) Necrosis
D) Curling
Black tip of mango is caused by:
A) Phythium
B) Phytosynthetas
C) Boron deficiency
D) Zinc deficiency
Alexander Fleming (1929) discovered:
A) Streptomycetease
B) Penicillin
C) Tyrocidine
D) Giseofulvin
A bacterium is devoid of:
A) Chlorophyll
B) Well defined nucleus
C) Cell wall
D) Both (A) & (B)
Botulism is caused by species of:
A) Bacillus
B) Pseudomonas
C) Agrobacterium
D) Clostridium

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