The three day Viagra you don't need to take on an empty stomach. The weekend love pill. Man, I bounced on that bitch for three days straight, thanks to Cialis. Like being 16 again, except this time I know what I'm doin'.
A full set of sister chromatids is created during the S subphase of interphase, when all the DNA in a cell is replicated. Identical chromosome pairs are separated into two different cells during mitosis, or cellular division.
  During the S phase (synthesis), chromosomes duplicate and can be called sister chromatids. Sister chromatids are exact copies of each other joined together by a centromere. As long as they are joined, they are called sister chromatids and when they are seperated, they are called chromosomes.