Understanding:
• DNA is replicated before meiosis so that all chromosomes consist of two sister chromatids
Meiosis is preceded by interphase, during which DNA is replicated (in the S phase) to produce two genetically identical copies
- The two identical DNA molecules are identified as sister chromatids, and are held together by a single centromere
- The sister chromatids are separated during meiosis II, following the separation of homologous chromosomes in meiosis I
Sister Chromatids
