三)细胞的全能性与克隆生物 Root of carrot plant Root cells cultured in Plantlet nutrient medium Cell division in culture Adult 1、 Single cell 细胞全能性 plant CAddoon Wesley Longman ino Inner Cell Mass In Vitro Totipotent Fertilization Blastocyst Fetus Cells（三）细胞的全能性与克隆生物 1、细胞全能性