Lilly Anther in Anaphase II
- The sister chromatids separate and move toward the opposite cell poles.
Chromosome. Image courtesy of Indigo Instruments
- Sister chromatids are two identical copies of a single chromosome that are connected by a centromere.
- In anaphase of mitosis, sister chromatids separate and begin moving to opposite ends of the cell. Once the paired sister chromatids separate from one another, each is considered a full chromosome.