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.
When cells enter mitosis, the sister chromatids (which represent the two copies of each chromosomal DNA molecule resulting from DNA replication earlier in the cell cycle and packaged by histones and other proteins into chromatin) are linked all along their length by the action of the cohesin complex.