Plant Biotechnology MCQs Part 7

1. Gene silencing is generally termed as __________ of genes.

• switching off
• switching on
• absence
• presence

2. Production of ethylene is inhibited by antisense gene________.

• glyphoshate
• ACC synthase
• ACC synthatase
• lyase

3. ____________ is responsible for fruit ripening.

• Glyphoshate
• ACC synthase
• ACC synthatase
• Polygalacturonidase

4. Which one of the following technique is used to produce Flavr Savr tomato?

• rDNA technology
• Trangenesis
• Antisense RNA technology
• rRNA technology

5. Preservation of germplasm in the frozen state is termed as _______.

• cryoprectectant
• cryopreservation
• preservation
• storage

6. Conversion of molecular nitrogen into nitrogenous compound is called as _______.

• nitrogen fixation
• nitrogen adsorption
• nitrogen dissociation
• nitrogen absorption

7. Conversion of molecular nitrogen into nitrogenous compound through lightening is called as __________ nitrogen fixation.

• atmospheric
• industrial
• biological
• symbiotic

8. Conversion of molecular nitrogen into nitrogenous compound through chemical is called __________ nitrogen fixation

• atmospheric
• industrial
• biological
• symbiotic

9. Conversion of molecular nitrogen into nitrogenous compound through living organism is called __________ nitrogen fixation

• atmospheric
• industrial
• biological
• symbiotic

10. Which one of the following is NOT nitrogen fixer?

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

Score =

Correct answers:

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

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