Traits that promote survival and reproduction are likely to over time, while traits that do not promote survival and reproduction are likely to decrease over time. This is part of the natural selection process, which is the process that consistently make populations adapted, or better-suited for their environment, over time.Because traits that do not promote survival and reproduction are not essential they will decrease over time.
Amount of DNA in a diploid G2 nucleus after S phase has already undergone DNA replication hence the amount of DNA in a diploid nucleus in G1 would be 200 ng. As the organism is diploid, 200 ng of DNA would be carried on 14 chromosomes.