两性动物的繁殖过程，通过来自雌性亲本的卵细胞和雄性亲本的精细胞受精融合，从受精卵发育成动物个体。这一繁殖过程称为有性生殖，其发育生物学和遗传学特征是：了代个体发育从受精卵开始，遗传物质分别来自两性亲本。所谓克隆（Clone）即无性繁殖系，通过细胞核移植技术，在 The process of reproduction of the amphiprotic animals develops from zygotes into individual animals through the fertilization and fusion of the sperm cells of the egg cells from the female parent and the male parent. This process of reproduction is called sexual reproduction and its developmental biology and genetics are characterized by the development of the individual from the fertilized egg and the genetic material from the amphipathic parent. The so-called Clone (Clone) is the clonal line, through the nuclear transfer technology, in