Chromosome, Chromatin, Chromatid - What is the Difference - This lecture explains about the difference between Chromosome, Chromatin, Chromatid. A chromosome consist of a DNA double helix bearing a linear sequence of genes.
The DNA is coiled and recoiled around proteins called histones. The resulting complex is called chromatin.
During the cell division, more precisely during the S-phase of interphase, DNA is replicated. The resulting two identical copies of DNA are connected to each other at the centromere. Each copy is called a chromatid.
A chromosome, before cell division is formed by one chromatid while it is formed pf two chromatids after cell division.
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