Glossary P
Glossary P
Polygenic refers to a model of inheritance in which more than one gene participates in the process of determining a given characteristic. Polygenic is also defined as a combination of many genes each of which makes a small contribution to an inherited trait of an individual Polygenic also pertains to two (2) or more genes; resulting from many genes as opposed to Monogenic. An example is Eye color. It is Polygenic which is determined by a number of genes.
Polygenic disease is defined as a genetic disease caused by the combined actions of two (2) or more genes. The following are examples of Polygenic diseases: Coronary heart disease, Diabetes, Hypertension, and Peptic ulcers. These disorders depend on the simultaneous presence of several genes or combination of many genes working together. These diseases are not inherited in simple Mendelian patterns.
Polygon is defined as a frequency distribution graph in which a series of points connected by straight lines indicates the frequency of each score from an interval or ratio scale of measurement.
Polygraph refers to a mechanical device used to measure and record people's physiological responses, such as heart rate, blood pressure, circulation respiration, and galvanic skin response. It is a devide used to detect deception in crime suspects. When Polygraph or Polygraph machine is used in "lie detection", the Polygraph Operators attempt to tell if someone is lying by observing how that person responds physiologically while answering questions Polygraph is commonly called a Lie Detector