Teaching BPSC 4.0 बिहार उच्च माध्यमिक शिक्षक भर्ती (PGT) Mock Test Biology Molecular Biology Biotechnology
Salt stress, disease resistance and cold stress in plants can be introduced by
1
Genetic engineering
2
Tissue culture
3
Hybridoma technology
4
More than one of the above
5
None of the above