5.16 describe the stages in the production of cloned mammals involving the introduction of a diploid nucleus from a mature cell into an enucleated egg cell, illustrated by Dolly the sheep

5.16 •cloning an adult mammal is done by transplanting a nucleus e.g Dolly the Sheep

                  •1. nucleus of sheep’s egg cell was removed, creating an enucleated cell 

                  •2. a diploid nucleus (full paired set of chromosomes) was inserted in it’s place, from a mature udder cell of a different sheep 

                  •3. the new cell was electrocuted so it started to divide by mitosis

                  •4. the dividing cell was implanted into the uterus of another sheep to develop until born  

                  •5. the result was Dolly, a clone of the sheep that the udder cell came from