1, scientists call the process of artificial gene manipulating animal reproduction "cloning", and this biotechnology is called "cloning technology", which itself means asexual reproduction (translated by Chinese mainland), that is, a pure cell line formed by the division and reproduction of the same ancestor cells, in which the genes of each cell are the same as each other.

2. Cloning refers to a genetically homogeneous biological group produced by asexual reproduction, that is, a group of cells or biological individuals with identical genetic components. Cloning means "branches and leaves of small trees" in Greek, which means asexual reproduction. Now it refers to asexual breeders at different levels such as individuals, cells and genes.

Cloned species

1. A pure cell line formed by the division and reproduction of the same ancestor cell (each gene is the same as each other).

2. Firstly, the nuclei of donor cells containing genetic material were transplanted into recipient eggs without nuclei, and the two cells were fused by micro-current stimulation. (The same gene as the cell donor)