Biological Classification And System Of Classification Question 89

Question: A free living anaerobic bacterium capable of $ N_2 $ fixation in soil is [DPMT 1989, 93; CBSE PMT 1990; CMC Vellore 1993; RPMT 1995; MP PMT 1996]

Options:

A) Rhizobium

B) Azotobacter

C) Streptococcus

D) Clostridium

Show Answer

Answer:

Correct Answer: D

Solution:

Clostridium is saprophytic, anaerobic $ N_2 $ fixing bacteria and have ability to fix atmospheric $ N_2 $ in to $ NH_3.

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