Depending on the level of compactness, the chromatin gets divided into heterochromatin or euchromatin. The less compact one is known as the euchromatin. It forms an 11nm fiber, representing the nucleosome structure. The heterochromatin looks compact and dense. It is known as the 30 nm fiber. Let us discuss each one in details. Euchromatin: It involves the actively transcribing DNA of the chromosome. Thus, the euchromatin consists of normally functioning genes. It is a region of a eukaryotic chromosome that gets diffused during the interphase. The euchromatin consists of the active genomic form and stains lighter. Maximum percentage of the human genome involves the euchromatin (92%). Its structure appears like the beads on a string form. The nucleosomes comprise of proteins and DNA linked together. The proteins are known as histones. There are eight histones in the nucleosome. The methylated lysine 4 is present on the tail of the histone protein. It indicates a marker for the euchromatin…