Markers in Biological Definition

Isozyme

... 4 Isozymes and allozymes as molecular markers 5 References 6 External links ... the basis for the use of isozymes as Molecular markers . To identify isozymes, a crude protein extract ... Isozymes and allozymes as molecular markers Population genetics is essentially a study ...

Gel electrophoresis

... same "height" contain molecules that passed through the gel with the same speed, which usually means they are about the same size. There are special markers available, which contain molecules of known sizes. If such a marker was run on one lane in the gel parallel to the mixture(s), the bands it displays ...

Gel electrophoresis

... same "height" contain molecules that passed through the gel with the same speed, which usually means they are about the same size. There are special markers available, which contain molecules of known sizes. If such a marker was run on one lane in the gel parallel to the mixture(s), the bands it displays ...

Genetic fingerprinting

... which the coincidence probabilities were computed. For example, the coincidence probabilities may be calculated based on the probabilities that markers in two samples have bands in precisely the same location, but a laboratory worker may conclude that similar -- but not precisely identical -- band ...

Genetic recombination

... as a result of their location on the same chromosome. Linkage disequilibrium describes a situation in which some combinations of genes or genetic markers occur more or less frequently in a population than would be expected from their distances apart. This concept is applied when searching for a gene ...

Genetics

... genetics focuses on wild populations of organisms, and attempts to collect data on the ecological aspects of individuals as well as molecular markers from those individuals. Genomics Main article: Genomics A more recent development is the rise of genomics , which attempts the study of ...

Glycolipid

... Glycolipids are carbohydrate -attached lipids . Their role is to provide energy and also serve as markers for cellular recognition. They occur where a carbohydrate chain is associated with phospholipids in the cell surface membrane . The ...

Molecular biology

... vector). This plasmid may have special promoter elements to drive production of the protein of interest, and may also have antibiotic resistance markers to help follow the plasmid. This plasmid can be inserted into either bacterial or animal cells. Introducing DNA into bacterial cells is called ...

T cell

... refer to the characteristic antigens on the surface of the different sub-types of T-lymphocytes. These CD molecules are convenient diagnostic markers for identifying and quantitating these cells by flow cytometry using specific antibodies against them. T cell activity and secretions are ...