The foreign gene becomes a part of its genome in its body. this

The introduced gene is first isolated and designed to carry it.

The right fragment. Then injecting the fertilized eggs as follows,

Methods: This gene was injected into female mice.

Hormones to produce a large number of eggs; Let a male mouse

Mating leads to partial fertilization of eggs; Collect these eggs,

Inject external genetic material before it divides. these

Eggs are transplanted into another female, where they grow.

It's shaped. Genetic material becomes mouse cells in some eggs.

Integrating loci and chromosomes

Materials. Animals born from this hatch will carry this.

Genes thus become transgenic animals. Transfer gene

Animals are very interested in describing the recently discovered gene function and the right

Produce beneficial protein pole in large animals.

useful

Transgenic animals refer to experimental animals

Techniques for inducing foreign genes.

Stable integration and can be passed on to future generations

animal In 198 1, foreign sources were successfully introduced for the first time.

Transgenic animal embryos, established transgenic animals.

Technology. 1982. switch to

The growth hormone gene of rats makes the rats weigh.

Twice as much as a normal individual, so it is called a "super mouse".

Since then, the culture has been successfully transferred.

Genetic rabbits, sheep, pigs, fish, insects, cattle,

Transgenic chicken, goat, rat, etc.

animal

Because transgenic animal systems have broken nature.

The isolated reproduction between species enables genes to be isolated in plants.

The flow between distant organisms, it will have

The influence of the overall situation on the whole life science. Therefore,

Transgenic animal technology was transferred after 199 1

The recognition adopted by the international gene mapping conference is

Genetic relay chain analysis, somatic genetics and

The fourth generation technology of gene cloning is listed as

The biological history turned 14 in 126.

Since the publication of 1982 transgenic mice, it has been transferred.

The research on genetic animals has made amazing achievements in many aspects.

Domain. Generally speaking, according to different goals, turn

Gene animal surgery can be simply divided into four categories.

Species type: (1) disease transfer gene animals; (2) Use

Drug manufacturing of genetically modified animals; (3) animal improvement;

(4) Basic biological research.

Transgenic animals have broad application prospects in China.

Many domains:

Transferring genes to animals is of great significance to a variety of organisms.

A tool for understanding the nature of phenomena, such as studying genes.

Relationship between structure and function, nucleus and cytoplasm

Interaction, embryonic development regulation and tumor, etc.

Open;

Can be used to establish animals with various diseases.

Model, and then study the pathogenesis and methods of these diseases.

Treatment;

Because transgenic animal technology can

Transform the genome of animals so that domestic animals,

The economic characters of poultry have improved a lot.

Effective, such as accelerating growth rate and lean meat rate.

Keywords improvement, pulp improvement, feed utilization rate improvement,

Enhanced disease resistance and so on. More profound about

The significance of animal genetic resources protection is to save.

Endangered species are essential;

4, transgenic animals can be used as medical or medical.

Edible protein bioreactor.