MCQ
$Cry\ I$ endotoxins obtained from Bacillus thuringiensis are effective against
- Anematodes
- ✓boll worms
- Cmosquitoes
- Dflies.
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$A.$ Barrier methods of contraception
$B.$ Cover the cervix during coitus
$C.$ Protect the user from contracting $STDs$
$D.$ They are reusable