What is formed by Bacillus thuringiensis during a particular phase of their growth ?
Answer & explanation
Correct answer: option 3
Bt Cotton: Some strains of Bacillus thuringiensis produce proteins that
kill certain insects such as lepidopterans (tobacco budworm, armyworm),
coleopterans (beetles) and dipterans (flies, mosquitoes). B. thuringiensis
forms protein crystals during a particular phase of their growth.