At the end of meiosis I, the two cells that were formed have 4 chromatids just like mitosis, however, neither has the two identical sets of chromosomes that it would in a diploid cell. Meiosis II is when two cells ender a 2nd meiotic division.
DNA especially I higher organisms contains coding and non-coding regions. Some of these non-coding DNA is transcribed into non-coding RNA such as regulatory RNA and t-RNA. These non-coding regions also form parts of centromeres and telomeres. It has been discovered that humans DNA has a lot of non-coding DNA.