The chromatin

The chromatin (from the Greek. chroma, chromatos - color) - the substance of the cell nucleus, participating in the construction of chromosomes and received its name from the ability to intensively painted after appropriate fixing specific histologic dyes. In the structure of chromatin includes DNA and histones; in a smaller number of non-core proteins and RNA. The main response to the chromatin is painting on Galgano (see Falena reaction). Found chromatin and among the most primitive organisms (bacteria, viruses), deprived of the kernel. Morphology of chromatin extremely diverse.
Sex chromatin - see Floor, Cytogenetic studies.