Multiple choice

Plants can be made disease-resistant by

  1. treating them with 2-4D

  2. breeding them with their wild relatives

  3. introducing mutation

  4. treating them with fungicide
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Breeding plants with their wild relatives is a traditional and effective method used in crop improvement to introduce disease-resistance genes into cultivated varieties. Wild relatives often possess robust natural immunity and resistance traits lost during domestication.

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