7. A 2 kbp (1 kilo base pairs =1,000 bp) DNA fragment is to be amplified by PCR from the genome of nematode C.elegans. The total genomesize is 105 kbp (108base pairs).
a. Prior to amplification, what fraction of the total DNA does the target sequence constitute?
b. What fraction does it constitute after 10 cycles of PCR?
c. After 25 cycles of PCR?