March 17, 2016 | 10:30AM PT. We TV has renewed its docuseries âGrowing Up Hip Hopâ for a second season, and announced a premiere date for the fifth season of âKendra on Top.â. âGrowing Up Hip Hopâ follows a new generation of hip-hop moguls following new paths and trying to get out of the shadows of their famous parents. Personalities featured in the show include Angela Simmons, Romeo Miller, Damon âBoogieâ Dash, Kristinia DeBarge, TJ Mizell and Egypt Criss.
Recombinant DNA is the general name for a piece of DNA that has been created by the combination of at least two strands. Recombinant DNA molecules are sometimes called chimeric DNA, because they can be made of material from two different species, like the mythical chimera.
New DNA molecules are made by copying, using old DNA molecules as a template. Our understanding of this process also goes back to Watson and Crick's observation that only certain base pairings can exist in DNA. Each DNA strand contains the information necessary to reconstruct the other, or complementary, strand. When a cell needs to copy a DNA molecule, it unzips part of the double helix, breaking the rungs of the ladder in half so that the molecule separates down the middle. New nucleotides, floating free in the cell, can then hook up with complementary nucleotides along each strand. Gradually the unzipping proceeds, and the new strands continue to grow until one DNA molecule becomes two identical DNA molecules. A cell copies all of its DNA in this fashion each time it divides.