what organisms are responsible for most of the photosynthesis in the world? photosynthesis and cellular respiration what two process do plants use but humans only use one of ?
Euchromatin is the genetically active type of chromatin involved in transcribing RNA to produce proteins used in cell function and growth. The predominant type of chromatin found in cells during interphase, euchromatin is more diffuse than the other kind of chromatin, which is termed heterochromatin.
Types of histones. Each octamer has two pairs of different histone proteins: H2A, H2B, H3 and H4. They are arranged as a pair of H2A-H2B dimers, and an (H3)2(H4)2 tetramer. There is an additional type of histone, the linker histone H1, which is present in condensed DNA.