Mathews County, Virginia (VA) County population in 2014: 8,836 (all rural); it was 9,207 in 2000. County owner-occupied with a mortgage or a loan houses and condos in 2010: 1,781. County owner-occupied free and clear houses and condos in 2010: 1,459. County owner-occupied houses and condos in 2000: 3,329.
DNA makes copies of itself through the process of replication.  Because the nucleotide bases are complementary, they automatically  make the other strand of complementary ba â¦ ses when the division of  the cell occurs.
DNA is like the instruction manual for building and operating a cell. DNA replication needs to occur because existing cells divide to produce new cells. Each cell needs a full instruction manual to operate properly. So the DNA needs to be copied before cell division so that each new cell receives a full set of instructions! Here is a video which uses an animated tutorial to explain the process of DNA replication.