Plant Biotechnology MCQs Part 9

Neeraj Girdhar

1. What is the shape of root nodules?

• Spherical
• Circular
• Oval
• Rectangle

2. Root nodule is formed by the _________ of the root cells.

• elongation
• circularization
• curling
• proliferation

3. Proliferation of root nodule is induced by the bacterium _______.

• Anabena
• Azomonas
• Rhizobium
• Azospirillum

4. Fe-protein part of nitrogenase enzyme can also be called as _______.

• dinitrogen reductase
• dinitrogenase
• reductase
• dinitrogen

5. Fe-Mo-protein part of nitrogenase enzyme can also be called as _______.

• dinitrogen reductase
• dinitrogenase
• reductase
• dinitrogen

6. Preparation of microorganism which on adding to the soil to improve the fertility of the soil is known as _______.

• biofertilizers
• vermicompost
• fertilizers
• composting

7. Biofertilizers which converts nitrogen into nitrogenous compound are called as ________ fixers

• dinitrogen
• nitrogen
• ammonia
• nitric acid

8. Which one of the following is considered to be the best nitrogen fixers for biofertilizers?

• Anabena
• Azomonas
• Rhizobium
• Azospirillum

9. who reported the suspension cultures from carrot root explant?

• Watson and Crick
• Steward and Shantz
• Benthaman and Hook
• Lederber and Tatum

10. What is a cloning vector?

• An agent used to transfer DNA from an in vitro solution into a living cell
• The sticky end of a DNA fragment
• The laboratory apparatus used to clone genes
• A DNA probe used to locate a particular gene in the genome

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

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