Answer:
2.048 x 10^6 No. Of Copies
Explanation:
The DNA replication in a PCR works exponentially by using the 2^n where n represents the number of cycles.
For one molecule of DNA = 2^11 = 2048 No. Of Copies
For 1000 Molecules of DNA = 1000 x 2048 = 2.048 x 10^6 No. Of Copies
B, I think, because by saying that the ice cube has a lower heat capacity means that it cannot stead heat enough to last longer then the water and pool.
A DNA evidence provides the strongest support for the current Eubacteria phylogeny.