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NEET Exam  >  NEET Test  >  Biology Class 12  >  Assertion & Reason Test: Biotechnology & Its Applications - NEET MCQ

Biotechnology & Its Applications - Free Assertion Reason Questions


MCQ Practice Test & Solutions: Assertion & Reason Test: Biotechnology & Its Applications (10 Questions)

You can prepare effectively for NEET Biology Class 12 with this dedicated MCQ Practice Test (available with solutions) on the important topic of "Assertion & Reason Test: Biotechnology & Its Applications". These 10 questions have been designed by the experts with the latest curriculum of NEET 2026, to help you master the concept.

Test Highlights:

  • - Format: Multiple Choice Questions (MCQ)
  • - Duration: 20 minutes
  • - Number of Questions: 10

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Assertion & Reason Test: Biotechnology & Its Applications - Question 1
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : An American company is allowed the company to sell a ‘new’ variety of Basmati rice.

Reason (R) : Indian Basmati was crossed with semidwarf varieties and claimed as a novelty.

Detailed Solution: Question 1

In 1997, an American company got patent rights on Basmati rice through the US Patent and Trademark Office. This allowed the company to sell a ‘new’ variety of Basmati which had actually been derived from Indian farmer’s varieties. Indian Basmati was crossed with semi-dwarf varieties and claimed as a novelty.

Assertion & Reason Test: Biotechnology & Its Applications - Question 2
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : Transgenic mice are being used to test the safety of the polio vaccine.

Reason (R) : It could replace the use of monkeys to test the safety of batches of the vaccine.

Detailed Solution: Question 2

Safety of polio vaccine is tested on transgenic mice, before using this vaccine on humans. It is because mice are supposed to be very much similar to human beings in their genomic arrangement. This is the reason mice are used in most medical research.

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Assertion & Reason Test: Biotechnology & Its Applications - Question 3
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : Transgenic animals had their DNA manipulated.

Reason (R) : 95% of all existing transgenic animals are mice.

Detailed Solution: Question 3

Transgenic animals originate from recombinant DNA.

Assertion & Reason Test: Biotechnology & Its Applications - Question 4
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : Ti plasmid (tumour-inducing plasmid) of Agrobacterium tumefaciens is used as a cloning vector.

Reason (R) : Ti plasmid integrates a segment of its DNA, termed T-DNA into the chromosomal DNA of its host plant cells.

Detailed Solution: Question 4

Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

The Ti plasmid (tumour-inducing plasmid) of Agrobacterium tumefaciens is used as a cloning vector. Ti plasmid integrates a segment of its DNA, termed T-DNA into the chromosomal DNA of its host plant cells. This is the mechanism that allows for the transfer of genetic information from the plasmid to the plant cell, which is used to genetically modify the plant. The T-DNA region contains genes that are responsible for the formation of a tumour and also contains genes that can be used for genetic engineering. Therefore, the reason (R) explains the assertion (A) correctly.

Assertion & Reason Test: Biotechnology & Its Applications - Question 5
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : ‘Bt’ in Bt toxin represents Bacillus thuringiensis.

Reason (R) : ‘Bt’ toxin is produced by a virus.

Detailed Solution: Question 5

Assertion (A) is true, but reason (R) is wrong as Bt toxin is produced by a bacterium called Bacillus thuringiensis.

Assertion & Reason Test: Biotechnology & Its Applications - Question 6
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : Norman E. Borlaug was the father of "Green revolution".

Reason (R) : Green revolution is the period when there is significant increase in agricultural productivity of grains (specially wheat and rice).

Detailed Solution: Question 6

The Green Revolution was an endeavour initiated by Norman Borlaug in the 1960s. He is known as the 'Father of Green Revolution' in world. It led to him winning the Nobel Peace Prize in 1970 for his work in developing High Yielding Varieties (HYVs) of wheat. In India, the Green Revolution was mainly led by M.S. Swaminathan. The Green Revolution resulted in a great increase in production of food grains (especially wheat and rice) due to the introduction into developing countries of new, high-yielding variety seeds, beginning in the mid-20th century. Its early dramatic successes were in Mexico and the Indian subcontinent. The Green Revolution, spreading over the period from 1967-68 to 1977-78, changed India’s status from a food-deficient country to one of the world's leading agricultural nations.

Assertion & Reason Test: Biotechnology & Its Applications - Question 7
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : Genetically modification makes crops more tolerant to abiotic stress (cold, drought etc.)

Reason (R) : Genetically Modified Organisms (GMO) genes have been altered by manipulation.

Detailed Solution: Question 7

- Correct Answer: A: Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).
- Explanation:
- Genetically modified crops are engineered to withstand abiotic stresses like cold and drought.
- GMOs have their genetic makeup altered through manipulation, which confers traits for stress tolerance.
- Therefore, genetic modification enables crops to exhibit enhanced resilience to adverse environmental conditions by introducing specific genes for stress tolerance. 

Assertion & Reason Test: Biotechnology & Its Applications - Question 8
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : The inactive form of toxic proteins are advantageous to the bacteria producing it.

Reason( R) : Low concentration of a bacteria or virus, even at a time when the symptoms of the disease are not visible, can be detected.

Detailed Solution: Question 8

Many proteins including certain toxins are secreted in their inactive form. They get activated, only when exposed to a specific trigger (pH, temperature, etc.). It is advantageous to the bacteria producing it because the bacterium does not get killed due to the action of protein.

Low concentration of a bacteria or virus, even at a time when the symptoms of the disease are not visible, can be detected by amplification of their nucleic acid by PCR methods.

Assertion & Reason Test: Biotechnology & Its Applications - Question 9
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :

Assertion (A) : GEAC will decide the safety of introducing GM organisms for public use.

Reason (R) : Genetic modifications of organisms may have opposite results when introduced into the ecosystem.

Detailed Solution: Question 9

Genetic modification of organisms can have unpredictable results when such organisms are introduced into the ecosystem. Therefore, the Indian Government has set up organisations such as GEAC (Genetic Engineering Approval Committee), Which will make decisions regarding the validity of GM research and safety of introducing GM-organisms for public services.

Assertion & Reason Test: Biotechnology & Its Applications - Question 10
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Directions : In the following questions a statement of assertion (A) is followed by a statement of reason (R). Mark the correct choice as :
Assertion (A) : Rosie was the first transgenic cow.
Reason (R) : It contained human alpha lactalbumin.

Detailed Solution: Question 10

The correct answer is: a) Both assertion (A) and reason (R) are true and reason (R) is the correct explanation of assertion (A).

Explanation:

  • Assertion (A): Rosie was the first transgenic cow. → True

    Rosie was indeed the first transgenic cow, developed in 1997 by the National Dairy Development Board (NDDB) in collaboration with the Indian Institute of Science (IISc).

  • Reason (R): It contained human alpha lactalbumin. → True

    Rosie was genetically modified to produce milk enriched with human alpha-lactalbumin, a protein present in human milk, which is essential for infant nutrition.

Since the presence of human alpha-lactalbumin in Rosie’s milk was the reason she was considered a successful transgenic cow, the reason is the correct explanation of the assertion.

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About this NEET Practice Test

This test contains 10 MCQs on Assertion & Reason Test: Biotechnology & Its Applications with detailed solutions for each question. It is part of the Biology Class 12 course on EduRev, designed to align with the current NEET syllabus. Each solution explains not just the correct answer but also gives you an understanding of the topic — not just to attempt the question but also help you prepare for the exam with practice.

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