I used bisuflite converted, fully methylated DNA, bisulfite converted fully unmethylated DNA and unconverted DNA controls from Qiagen and tested out methylated and unmethylated primers. The methylated primers were amplified even in unmethylated DNA, but the unmethylated DNA has not been amplified using unmethylated primers.
Also, the unconverted DNA has PCR products as well. Can someone please explain this?