Crop Improvement · Botany

Which plant breeding technique involves the use of chemical or physical agents to create sudden, heritable changes in the DNA sequence?

  1. Polyploidy breeding
  2. Mutation breeding
  3. Cross-breeding
  4. Pedigree breeding
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Correct answer: Mutation breeding

Mutation breeding uses mutagens like Gamma rays or Ethyl Methane Sulfonate (EMS) to induce genetic variation. It is particularly useful for improving specific traits like flower color or disease resistance in existing high-yielding varieties.

Difficulty: Medium Question 5 of 20

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