Final answer:
RecA forms filaments on ssDNA and mediates genetic recombination in order to accurately repair DNA damage.
Step-by-step explanation:
RecA forms filaments on ssDNA and mediates genetic recombination. When a break occurs in the DNA strand, RecA protein binds to the single-stranded DNA and forms a nucleoprotein filament. This filament scans the other replicating strand for homologous sequences and when found, binds to them and facilitates the invasion of the homologous double-stranded DNA, separating the template and newly replicated DNA. This process of genetic recombination helps in the accurate repair of DNA damage without deletions or insertions.