MCQ
Identify the incorrect statement.
$(i)$ Bacillus thuringiensis are available in sachets as dried spores which are mixed with kerosine and sprayed on to vulnerable plants
$(ii)$ B. thuringiensis are used to control butterfly caterpillars, but leave other insects unharmed
$(iii) $ The toxin of B. thuringiensis is released in the blood of larvae and the larvae get killed
$(iv)$ By the development of methods of genetic engineering B. thuringiensis toxin genes have been introduced
- A$(i) \;and\; (ii)$
- B$(ii) \;and \;(iii)$
- ✓$(i)\;and\; (iii)$
- D$(ii)\; and\; (iv)$