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Plant Breeding for Disease Resistance: Mutation Breeding MCQ - Practice Questions with Answers

Edited By admin | Updated on Sep 18, 2023 18:34 AM | #NEET

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  • Plant Breeding for Disease Resistance: Mutation Breeding is considered one of the most asked concept.

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Plant Breeding for Disease Resistance: Mutation Breeding
  • Mutation is the process by which genetic variations are created through changes in the base sequence within genes resulting in the creation of a new character or trait not found in the parental type.
  • It is possible to induce mutations artificially through use of chemicals or radiations (like gamma radiations), and selecting and using the plants that have the desirable character as a source in breeding – this process is called mutation breeding. 
  • In the mung bean, resistance to yellow mosaic virus and powdery mildew were induced by mutations.

Transfer of Resistant Gene:

  • Several wild relatives of different cultivated species of plants have been shown to have certain resistant characters but have very low yield. 
  • Hence, there is a need to introduce the resistant genes into the high-yielding cultivated varieties. 
  • Resistance to yellow mosaic virus in bhindi (Abelmoschus esculentus) was transferred from a wild species and resulted in a new variety of A. esculentus called Parbhani kranti.

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