Disease-resistant wheat is produced by

  1. natural selection only
  2. crossing high-yield varieties with varieties carrying resistance alleles and selecting offspring
  3. mitosis
  4. spraying fungicides
Answer

B) crossing high-yield varieties with varieties carrying resistance alleles and selecting offspring

Selective breeding. AS & A Level Biology · Topic 17 Selection and Evolution · 17.2 Natural and artificial selection

Biology MCQ · More A Level Biology: Selection and evolution MCQs · Practise