Plant Biotechnology MCQs Part 8

1. ________ fixes molecular nitrogen in the roots of leguminous plant.

• Rhizobium species
• Bacillus species
• Clostridium species
• Staphylococcus species

2. Rizobium is a Gram ______ bacterium

• negative rod
• negative spherical
• positive rod
• positive spherical

3. Nodule bacteria were isolated by _______.

• Watson
• Crick
• Nitesh
• Beijernck

4. Nodule bacteria were isolated by Beijernck in ______.

• 1988
• 1888
• 1788
• 1688

5. Conversion of molecular nitrogen into ammonia by free living organism is called __________ nitrogen fixation.

• atmospheric
• industrial
• nonsymbiotic
• symbiotic

6. Conversion of molecular nitrogen into ammonia by organism in the root itself is called __________ nitrogen fixation.

• atmospheric
• industrial
• nonsymbiotic
• symbiotic

7. Non symbiotic nitrogen fixers are _______.

• bacteria
• virus
• fungi
• nematodes

8. Non symbiotic nitrogen fixing bacterium is _______.

• Anabena
• Azomonas
• Rhizobium
• Klebsiella

9. Non symbiotic nitrogen fixing cyanobacterium is _______.

• Anabena
• Azomonas
• Rhizobium
• Klebsiella

10. Heterocyst is the structure present in _______.

• Anabena
• Azomonas
• Rhizobium
• Azospirillum

Score =

Correct answers:

Plant Biotechnology MCQs Parts => 1.. 2.. 3.. 4.. 5.. 6.. 7.. 8.. 9..

Plant Biotechnology MCQs Parts => 1.. 2.. 3.. 4.. 5.. 6.. 7.. 8.. 9..

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