Transgenic Animals Definition Biology
Let us have a detailed look at the process, importance and applications of transgenic animals.
Transgenic animals definition biology. The mutual contributions of developmental biology and genetic engineering permitted rapid development of the techniques for the creation of transgenic animals. The ability to introduce foreign genes into the germ line and the successful expression of the inserted gene in the organism have allowed the genetic manipulation of animals on an unprecedented scale. The photo shows two transgenic mice positioned either side of a plain mouse.
Usually ear tissue and blood are screened by polymerase chain reaction and/or southern analysis for the presence of the transgene. Transgenic animals are those that have been genetically modified. Examine the effects of overexpressing and misexpressing endogenous or foreign genes at specific times and locations in the animals, study gene function, drug testing
Transgenic organisms are used in research to help determine the function of the inserted gene, while in industry they are used to produce a desired substance. The transgenic animals are genetically engineered and are also known as genetically modified organisms. Transgenic techniques have been used for a number of goals:
Methods for producing transgenic animals: Genetically modified animals that arise from the injection of the pronucleus of fertilized eggs are commonly referred to as “transgenic” animals. The application of recombinant technique for horizontal transfer of gene in plant system has several limitations.
Genetically enginnered animal or offspring of genetically engineered animals. All subsequent offspring will carry the new genetic material in their genomes and will show its effects. Transgenic animals are used to study the expression and control of foreign eukaryotic genes.
The ~ usually contains material from at lease one unrelated organism, such as from a virus, plant, or other animal. A transgenic organism is one that contains a gene or genes which have been artificially inserted instead of the organism acquiring them through reproduction. It allows many copies of the transgenic organism to be produced.