Teaching BPSC बिहार माध्यमिक TGT (9 to 10) शिक्षक भर्ती 4.0 Mock Test General Science Biology Biotechnology
The antibiotic resistance genes of a cloning vector are used
1
As selectable markers
2
To select healthy vectors
3
As sequences from where replication starts
4
More than one of the above
5
None of the above