Chromatin was discovered by Walther Flemming in the 1880s, who noticed that the dense nucleic substance greatly absorbed certain dyes (hence the name “chromatin,” which derives from the Greek root “chroma” meaning “color”). …
Who discovered chromatin remodeling?
The term chromatin was coined by Walther Flemming for the unique stainable fibrous structures observed in nucleus. Chromatin exists in a highly condensed form and is composed of nucleosomes possessing an octamer of histones H2A, H2B, H3 and H4, wrapped by 146bp of DNA and a linker histone H1.
How did Walther Flemming discover chromosomes?
Flemming was the first to detail the chromosomal movements in the process of mitosis. In 1879, Flemming used aniline dyes, a by-product of coal tar, to stain cells of salamander embryos. He was able to visualize the threadlike material as the cells divide.
Does chromatin have RNA?
Whether RNA itself plays a direct structural role in chromatin is, however, not known. Here, we report results indicating that RNA plays a general structural role in eukaryotic chromatin. Our results indicate that purified chromatin contains significant amounts of RNA (2%–5% of total nucleic acids).
What is the difference between chromatin and DNA?
The DNA is packaged by special proteins called histones to form chromatin. The chromatin further condenses to form chromosomes.
|Difference between Chromosomes and Chromatin|
|Composed of nucleosomes||They are condensed chromatin fibers|
What is another word for chromatin?
In this page you can discover 15 synonyms, antonyms, idiomatic expressions, and related words for chromatin, like: chromatin granule, heterochromatin, cytoskeletal, transcriptional, histone, cytoskeleton, tubulin, centrosome, transactivation, spliceosome and microtubule.
Why do we need a chromatin remodel?
Chromatin remodeling is an important mechanism of regulating eukaryotic gene expression, which makes tightly condensed DNA accessible to various regulatory factors, such as transcription factors and components of DNA replication.