for the last question i wrote about, how the cochlear implant is similar to the microelectronic chip. It just provides a sense, does not actually restore eyesight. then basically wrote all the limitations and advantages which are exactly the same as the ones for cochlear implant.
Difficulty in defining the terms Health and Disease, something to do with cell differentiation and specialisation, Reproductive Technologies, mechanisms involved with T&B cells, hormone replacement therapy
It isn't cloning. Check it out if you have time. http://www.smh.com.au/world/britain-could-create-first-threeparent-baby-20130628-2p278.html
It is a method to produce a mitochondrial disease free child.