Close Video Overview Bubonic plague is an illness caused by the bacterium Yersinia pestis. This bacterium is carried by a certain type of flea, commonly known as a rat flea, which infects humans and animals. Humans can get bubonic plague from the bite of an infected flea, from the bite of an animal infected with Y.
The act of assisting a chronically ill person to die. Evolution Any gradual change.
Organic evolution is any genetic change in organisms from generation to generation. Ex situ conservation A conservation method that keeps components of biodiversity alive outside their original habitat or natural environment. Exposure Contact with infectious agents bacteria or viruses in a manner that promotes transmission and increases the likelihood of disease.
Extinction The evolutionary termination of a species caused by the failure to reproduce and the death of all remaining members of the species. F Familial A characteristic or disorder that tends to run in families.
It may have genetic or nongenetic etiology. Fertilizer Any of a large number of natural and synthetic materials, including manure, nitrogen, phosphorus and potassium compounds, that are spread on or worked into soil to increase its capacity to support plant growth.
Ferulic acid A compound, C10—H10—O4, related to vanillin and obtained from certain plants.
Fetus An animal in the later stage of development before birth. In humans, the fetal stage lasts from the end of the second month until birth. Field trial A test of a new technique or variety, including biotech-derived varieties, done outside the laboratory but with specific requirements on location, plot size, methodology and more.
Fixed carbon The carbon remaining after heating in a prescribed manner to decompose thermally unstable components and to distill volatiles.
It is part of the proximate analysis group. Flavonoids A class of water-soluble plant pigments. Forestry residues Includes tops, limbs and other woody material not removed in forest harvesting operations in commercial hardwood and softwood stands, as well as woody material resulting from forest management operations, such as precommercial thinnings and removal of dead and dying trees.
Fullerene A pure carbon molecule composed of at least 60 atoms of carbon. Fulminant Any event or process that occurs suddenly, quickly and is intense and severe to the point of lethality.
G Gamete A male or female reproductive cell. In the female, it is called an ovum or an egg; in the male, a sperm. GE Genetically engineered or genetic engineering.
Gene The fundamental physical and functional unit of heredity. A gene is a section of a DNA molecule, or an ordered sequence of nucleotides located in a particular position on a particular chromosome that encodes a specific functional product such as a protein or an RNA molecule.
Gene bank A facility established for the ex situ conservation of individuals seedstissues or reproductive cells of plants or animals. Gene cloning Isolating a gene, then making multiple copies of it by inserting it into a bacterial cell or another organism.
Gene expression The result of the activity of a gene or genes that influences the biochemistry and physiology of an organism and may change its outward appearance.
Gene families Groups of closely related genes that make similar products, such as proteins. Gene flow The movement of genes from one individual or population to another genetically compatible individual or population.
Gene mapping Determining the relative physical locations of genes on a chromosome.Get the latest health news, diet & fitness information, medical research, health care trends and health issues that affect you and your family on timberdesignmag.com Helicobacter pylori, previously known as Campylobacter pylori, is a Gram-negative, microaerophilic bacterium usually found in the timberdesignmag.com was identified in by Australian scientists Barry Marshall and Robin Warren, who found that it was present in a person with chronic gastritis and gastric ulcers, conditions not previously believed to have a microbial cause.
Results from a new study may lead to approval of what could be the first drug that ameliorates potentially deadly reactions in children with severe peanut allergies.
The most common form of plague is bubonic plague. Bubonic plague symptoms. Symptoms of bubonic plague generally appear within two to six days of infection. With no treatment, bubonic.
Plague should be considered in any patient with clinical signs of plague and a recent history of travel to the western United States or any other plague endemic area. Bubonic plague is the most common primary manifestation, with a bubo usually occurring in the groin, axilla or cervical nodes.
Buboes. Pneumonic plague is particularly dangerous, with an incubation period of 3 to 5 days and a mortality rate approaching % unless antibiotic treatment is initiated within 24 h of the onset of symptoms.