What is the difference between homologous chromosomes and sister chromatids?
Disease description:
I would like to know the difference between homologous chromosomes and sister chromatids.
Doctor's answer (1)
Dr. Zhao Xiaodong
The difference between homologous chromosomes and sister chromatids lies in the fact that homologous chromosomes are pairs of chromosomes present in diploid cells, with one chromosome inherited from the father and the other from the mother. They are similar in shape and size, pair during prophase of meiosis, and carry similar genetic information. In contrast, sister chromatids are two identical copies of a single chromosome produced during the DNA replication phase of the cell cycle, joined together by a common centromere.
