I have a problem understanding a PCR exercise, it says to calculate the number of cycles to get 1µg of the DNA fragment, starting from 10ng and then from 500ng, I know about 2^n, and the exercise even gave the answers:
For 10ng, we need 29 cycles and for 500ng, we need 24 cycles
But I don't know how they did it, I tried with 2^n and ended up with something totally different. I would be grateful if someone explained it to me. Thank you.