I am encountering an issue with my PCR band size. The expected band size is around 450 bp, but I am consistently obtaining bands near 2,000 bp. There are no bands in the negative control, so contamination seems unlikely. I have included an image of the gel. In this gel, I used four different template concentrations, all exhibiting the same band pattern. The DNA concentration is 187 ng/μL. Despite adjusting the annealing temperature, the issue persists. I have been struggling with this for more than two months. Please help me.

More Shashini Gunathilaka's questions See All
Similar questions and discussions