Question

Mutations can be induced with

• A. Infra Red radiations
• B. IAA
• C. Ethylene
• D. Gamma radiations

Answer 1

The Correct Option is D

To determine which option induces mutations, we need to understand the process by which mutations occur and the role of each option provided.

Explanation:

Mutations are changes in the DNA sequence of an organism. They can occur naturally due to errors in DNA replication or can be induced by external factors called mutagens.

1. Infrared Radiations:
   • Infrared radiation is a type of electromagnetic radiation with a wavelength longer than visible light. It primarily causes heating effects and is not known to cause mutations in DNA.
2. IAA (Indole-3-acetic acid):
   • IAA is a naturally occurring plant hormone in the auxin family. It plays a crucial role in plant growth and development but does not induce mutations.
3. Ethylene:
   • Ethylene is a simple hydrocarbon gas that acts as a hormone in plants. It is involved in the regulation of various physiological processes but does not cause mutations in cells.
4. Gamma Radiations:
   • Gamma radiation is a high-energy form of electromagnetic radiation. It is well-documented as a mutagen, capable of causing changes in DNA by breaking chemical bonds. This makes it effective for inducing mutations in genetic material.

Conclusion: Gamma radiations are used to induce mutations because of their high energy, which can alter the DNA structure. Hence, the correct answer is Gamma radiations.