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Last Updated On 18-12-2022 - By Jeesha Sara

Which of the following is a free living nitrogen fixing bacterium present in the soil?

a)

Nitrosomonas

b)

Rhizobium

c)

Azotobacter

d)

Pseudomanas


Question ID - 20 :-

Which of the following is a free living nitrogen fixing bacterium present in the soil?

a)

Nitrosomonas

b)

Rhizobium

c)

Azotobacter

d)

Pseudomanas

1 Answer
5876 Votes
3537

Answer Key : (c) -

(c) 

The genus-Azotobacter  comprises large, free-living, Gram negative, obligately aerobic, rod-shaped bacteria which are capable of fixation of nitrogen non-symbiotically.

Rhizobium is a symbiotic nitrogen fixing bacteria, Nitrosomonas  is a nitrifying bacteria, while Pseudomanas  sp. is denitrifying bacteria.



Next Question :

The genetic material of rabies virus is

a)

Double stranded RNA

b)

Single stranded RNA

c)

Double stranded DNA

d)

Single stranded DNA


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