Category: T

A DNA sequence sited at the end of a transcriptional unit that signals the end of transcription.  

One of the two irregular bones forming part of the lateral surfaces and base of the skull, and containing the organs of hearing. To the temple of the head or the corresponding lobe of the brain. Referring or relating to muscles, bone or blood vessels etc around the temple. This medical term pertains to the…

A terminal section of a chromosome which has a specialized structure and which is involved in chromosomal replication and stability. Its length is believed to be a few hundred base pairs. DNA sequences, that do not code for proteins, which are located at the (end) tips of chromosomes. Telomeres consist of the sequence GGGGTT repeated…

Essential ribonucleoprotein reverse transcriptase that adds telomeric DNA to the ends of eukaryotic chromosomes. Telomerase appears to be repressed in normal human somatic tissues but reactivated in cancer, and thus may be necessary for malignant transformation. An enzyme that enables the “repair” of telomeres (thereby stabilizing their length, and preventing “shortening” of the telomeres). The…

Essential oil extracted from Melaleuca alternifolia (tea tree). It is used as a topical antimicrobial due to the presence of terpineol. The essential oil of Melaleuca alternifolia. It is aromatic and has anti-inflammatory and antimicrobial properties. Contact dermatitis occurs in some sensitized individuals exposed to the oil.  

Astringent compounds in plants that protect the plant from yeasts, being eaten, and bacterial decay. Polyphenol plant constituents which bind divalent metal ions such as ferrous iron, zinc, etc. and makes these ions less bioavailable for intestinal absorption from the food. They have an astringent effect in the mouth, precipitate proteins, and are used to…

A specimen upon which an illustration was established; an informal but useful term coined by Stearn (1973) (Linnaeus based quite a few of his descriptions of species on the only material that he had seen of such species: an illustration published elsewhere).  

Assigning a type to a new taxon.  

(Of a taxon name) the locality from which the type specimen was gathered.  

(In plant taxonomy) an anchor to the identity of a name; An element, usually a herbarium specimen, on which a species name is based; Species on which a genus name is based; Genus on which a family name is based. A specific variety of food, such as Freestone peaches vs. Clingstone peaches. A term used…