Types Of Genetic Material Enclosures (Structures Containing, Covering & Protecting rNA and drNA)5. Prokaryote Nucleoid - The central inner region of the cytoplasm where the genetic material is located. This nucleoid is not surrounded by a membrane or a capsid. As an exception to this general rule, some bacteria appear to have a double membrane around their nucleoids and contain other structures and nucleoplasm within the membrane, but not in the nucleoid. 6. Eukaryote Nucleolus - A structure found inside the nucleus, made of rNA and proteins. The nucleolus exists in a separate area from the main genetic material, but there is no membrane separating these two areas, only nucleoplasm.
The primary function of the nucleolus is to make baby ribosomes (protein factories) before they are exported outside the nucleus and into the cytoplasm. A nucleolus is present in most, but not all, eukaryotes. 7. Eukaryote Nucleus - A membrane enclosed area of a cell containing the main genetic material and usually a nucleolus. The name of prokaryote and eukaryote contains the word “Kar.” This is related to “kary” which means nucleus. Letters “k” and “c” interchange, thus, kary becomes cary becomes “carry.” A nucleus carries the genetic information. Kar represents the birthplace and technology.
Sekaru is a fort. The birthplace is protected and hidden.
Sekar means to be silent, inactive, inert (just as drNA is moreso than rNA.)
Sekar also means to cut and to cut in pieces. As stated two messages ago, classifications of organisms based on a nucleus are generally based on incomplete and often contradictory information.
The case has already been made in the previous message regarding what other cell structures are also the same as a nucleus. This case will also be continued towards the end of this message. According to Phys.org in 2014, a detailed picture of the structure of the eukaryotic nucleus and the chromosomes within it still eludes modern day cell biology. [This is true despite the mapping of the human genome.] Finally, some eukaryotes have more than one nucleus and are called multi-nucleate. 8. Eukaryote Mitochondrion Nucleoid In Mammals - An organelle well known as a power plant that converts nutrients into energy for the cell. There are numerous mitochondria in each cell. Mitochondria have an outer and inner membrane, their own DNA and anywhere from one to thousands of nucleoids.
These nucleoids are dispersed throughout the mitochondrial network and contain single copies or small clusters of mitochondrial drNA. Evidence suggest nucleoids are the mitochondrial units of inheritance. In other words nucleoids in the mitochondria are the nucleus and nuclei of the mitochondrion.
The mitochondrial nucleoid is composed of mitochondrial drNA and a range of proteins with a diverse array of functions, from DNA packaging and transcription to signaling functions, facilitating mitochondrial drNA’s integration into crucial cell-wide metabolic and signaling networks. It is theorized that mitochondria are descended from bacteria engulfed by eukaryotic cells. This was later confirmed by the similarity of mitochondrial drNA to bacterial, rather than human nuclear drNA. This would also seem to indicate mitochondrial nucleoids are also of prokaryotic origin, thus second in manifestation, thus did not initially co-evolve with prokaryotes.