AP BIOLOGY

Detailed explanation-1: -Consequently, during interphase, DNA is combined with proteins and organized into a precise, compact structure, a dense string-like fiber called chromatin, which condenses even further into chromosomes during cell division.

Detailed explanation-2: -During interphase, the DNA of the chromosomes is replicated (during S phase). After DNA replication, each chromosome becomes composed of two identical copies (called sister chromatids) that are held together at the centromere until they are pulled apart during meiosis II (Figure 1).

Detailed explanation-3: -A full set of sister chromatids is created during the synthesis (S) phase of interphase, when all the chromosomes in a cell are replicated. The two sister chromatids are separated from each other into two different cells during mitosis or during the second division of meiosis.

Detailed explanation-4: -In Meiosis, the two sister chromatids are joined together by cohesin compexes along their bodies. The two sister chromatids are segregated from each other into two different daughter cells during mitosis. During prophase stage, sister chromatids are observed to be attached together at centromere.