in Reproductive cloning of mammals the Nucelus ( Genetic material) from Donar egg is removed, so it is enucleated. the cell is taken from the organism which is to be cloned and remove the nucleus from that cell. then these nucleus is introduced into the Donar egg (or) fuse these two cells using electrical shock. so cloned organism nucleus is fused with donar egg (enucleated egg). Solution in Reproductive cloning of mammals the Nucelus ( Genetic material) from Donar egg is removed, so it is enucleated. the cell is taken from the organism which is to be cloned and remove the nucleus from that cell. then these nucleus is introduced into the Donar egg (or) fuse these two cells using electrical shock. so cloned organism nucleus is fused with donar egg (enucleated egg)..