I have forward primer and reverse primer with 57 nucleotides. My 5' UTR is in these primer. I want to ligate these two ss primers. Is primer dimer formation gives me the final ds DNA or I would use another method?
Why not just use the two primers to amplify the DNA from your gene of interest? So-called "primer dimers" are not always just your primers stuck to each other, you can get a variety of different molecules (unused single-stranded primers, partial duplexes, etc.).