Correct option:(1)rep-protein
Solution:
- Rep protein is the repetitive extragenic palindromic protein that serves to unwind the DNA to initiate the replication.
- SSB proteins serve to stabilise the unwound DNA by preventing the formation of H-bonds between the base pairs of the ssDNA.
- DNA polymerase elongates the primer by addition of deoxyribonucleotides.
- Initiator proteins serve to recognise the ori followed by formation of primosome.