Transgenic Animals Are Those Which Have Foreign Dna In

The establishment of stable transgenic animals implies that the foreign DNA is present in gametes or one-cell embryos to allow its transmission to progeny.

Transgenic animals are those which have foreign dna in. Foreign DNA is introduced into the animal using recombinant DNA technology and then transmitted through the germ line so that every cell including germ cells of the animal contain the same modified genetic material. The foreign genes inserted into the genome of the animal using recombinant DNA technology are called transgenes. It is most frequently achieved by integration of cloned DNA sequences following their injection into the fertilized egg.

A genome is the complete set of genetic information for a species Transgenic animals are frequently created by a method known as microinjection. Such animals are most commonly created by the microinjection of dna into the pronuclei of a fertilised egg which is subsequently implanted into the oviduct of a pseudopregnant surrogate mother. Transgenesis is the phenomenon in which a f oreign gene with desired characteristics is introduced into the genome of the target animal.

Transgenic plants can be made by introducing foreign DNA into a variety of different tissues. The foreign gene that is introduced is known as the transgene and the animal whose genome is altered is known as transgenic. Transgenic animals have had a foreign gene inserted into their genome.

A gene is a sequence of DNA that codes for a protein and passes on inherited information. To reach this goal the foreign gene can be transferred using different methods according to animal species Vithani 2008. The major ones are micro-injection embryonic.

Foreign DNA in all its cells. Transgenic animals are those that have been modified to express recombinant DNA from another species. The foreign gene is constructed using recombinant DNA methodology.

Foreign DNA in some of their cells. Sheep goats pigs cows rabbits rats mice fish insects parasites and even humans have previously been used in this modification process. In addition to the gene itself the DNA usually includes other sequences to enable it to be incorporated into the DNA of the host and to be expressed correctly by the cells of the host.