one sister chromatid= one chromosome after separation.
One sister chromatid does not equal one chromosome after separation
One sister chromatid does not equal one chromosome after separation.
During cell division, specifically during the process of mitosis, sister chromatids are formed by the replication of a chromosome. Before replication, a chromosome consists of a single DNA molecule. After replication, the chromosome consists of two identical DNA molecules, referred to as sister chromatids, which are held together by a structure called the centromere.
During mitosis, the sister chromatids align at the center of the cell and then separate, with each sister chromatid moving to opposite ends of the cell. Once separated, each sister chromatid is considered an individual chromosome. Therefore, after separation, there will be two separate chromosomes, each identical to the original chromosome before replication.
To summarize, one sister chromatid is part of a replicated chromosome, and when separated during cell division, it becomes an individual chromosome.
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