chromatid
each of the two identical halves of a replicated chromosome
A chromatid is a condensed and coiled DNA molecule that is tightly coiled around proteins called histones. Chromatids are formed during the replication of a chromosome, where each chromosome is replicated into two identical copies called sister chromatids. These two sister chromatids are held together by a structure called the centromere until they are separated during cell division.
During cell division, the sister chromatids separate and move to opposite poles of the cell, ensuring that each new cell receives a full set of genetic information. The separation of chromatids occurs during the process of mitosis in somatic cells and meiosis in germ cells.
It is important to note that a chromatid is only a temporary structure that exists during cell division and is not a functional unit of a chromosome. After cell division is complete, the sister chromatids separate and become individual chromosomes again.
More Answers:
Embryonic Development of Human Reproductive System: Urogenital and Labioscrotal Folds ExplainedGenital Tubercle: Male and Female Embryonic Development
How does sexual differentiation occur during fetal development in mammals?