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The nucleolus (/ nj uː ˈ k l iː ə l ə s, ˌ nj uː k l i ˈ oʊ l ə s /; pl.: nucleoli /-l aɪ /) is the largest structure in the nucleus of eukaryotic cells. [1] It is best known as the site of ribosome biogenesis. The nucleolus also participates in the formation of signal recognition particles and plays a role in the cell's response to ...
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These are transcribed in the nucleolus by RNA polymerase I. 45S is processed in the nucleus via 32S rRNA to 28S [6] and 5.8S, [7] and via 30S to 18S, [8] as shown in the diagram. 18S is a component of the ribosomal 40S subunit. 28S, 5.8S and 5S, [9] which is transcribed independently, are components
The following is a list of genetic disorders and if known, type of mutation and for the chromosome involved. Although the parlance "disease-causing gene" is common, it is the occurrence of an abnormality in the parents that causes the impairment to develop within the child. There are over 6,000 known genetic disorders in humans.
Medications are usually not needed as hand, foot, and mouth disease is a viral disease that typically resolves on its own. Under research [15] [16] Sin Nombre virus: Hantavirus Pulmonary Syndrome (HPS) No Heartland virus: Heartland virus disease No Helicobacter pylori: Helicobacter pylori infection No Escherichia coliO157:H7, O111 and O104:H4
The following outline is provided as an overview of and topical guide to concepts related to infectious diseases in humans.. Infection – transmission, entry/invasion after evading/overcoming defense, establishment, and replication of disease-causing microscopic organisms (pathogens) inside a host organism, and the reaction of host tissues to them and to the toxins they produce.
The genetic material is freely found in the cytoplasm. Prokaryotes can carry extrachromosomal DNA elements called plasmids, which are usually circular. Linear bacterial plasmids have been identified in several species of spirochete bacteria, including members of the genus Borrelia notably Borrelia burgdorferi, which causes Lyme disease. [3]
Diseases can be associated with DNA mutations where DNA can be expanded, such as Huntington's disease, or lost due to deletion mutations. The same is true for mutations that occur in rDNA repeats; it has been found that if the genes that are associated with the synthesis of ribosomes are disrupted or mutated, it can result in various diseases ...