GS PrelimsScience and TechnologyBiotechnology2013

Recombinant DNA technology (Genetic Engineering) allows genes to be transferred 1. across different species of plants 2. from animals to plants 3. from microorganisms to higher organisms Select the correct answer using the codes given below.

A

1 only

B

2 and 3 only

C

1 and 3 only

D

1, 2 and 3

Correct Answer: Option D

Explanation

1. Recombinant DNA technology, also known as Genetic Engineering, involves techniques to manipulate the genetic material (DNA) of organisms. 2. A key capability of this technology is the ability to isolate genes from one organism and insert them into another, allowing genes to be transferred across natural species barriers. 3. Statement 1 is correct: Genes can be transferred across different species of plants to introduce desirable traits (e.g., pest resistance, herbicide tolerance). 4. Statement 2 is correct: Genes can be transferred from animals to plants (creating transgenic plants). 5. Statement 3 is correct: Genes can be transferred from microorganisms (like bacteria or viruses) to higher organisms (plants or animals), for example, the Bt gene from bacteria into cotton plants, or human insulin gene into bacteria. 6. Therefore, the technology allows genes to be transferred in all three ways described.

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