Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test General Science Biology Biotechnology
What triggers activation of protoxin to active Bt toxin of Bacillus thuringiensis in bollworm?
1
Body temperature
2
Moist surface of midgut
3
Alkaline pH of gut
4
More than one of the above
5
None of the above