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(Pages : 2)

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FOURTH SEMESTER (CBCSS—UG) DEGREE EXAMINATION, APRIL 2022

Time

10.
11.
12.
13.
14.

15.

Microbiology

MBG 4B 04—SOIL AND AGRICULTURAL MICROBIOLOGY

: Two Hours and a Half

(2019 Admission onwards)

Section A

Answer atleast ten questions.
Each question carries 3 marks.

All questions can be attended.

Overall ceiling 30.

Causative agent of bunchi top of banana.

Gloeocapsa.

Write examples of any bacterial pesticides.

Synergism.
Nematophagus fungi.
Rhizosphere.
Symbiont.

Ectendo Mycorrhiza.
Humus.
Denitrification.
Associative symbiosis.
Azolla.

Amensalism.

Angular leaf spot of cotton.

Luminescent bacteria.

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Maximum : 80 Marks

(10 x 3 = 30 marks)

Turn over