Alliteration is a term that describes a literary stylistic device. Alliteration occurs when a series of words in a row (or close together) have the same first consonant sound. For example, “She sells sea-shells down by the sea-shore” or “Peter Piper Picked a Peck of Pickled Peppers” are both alliterative phrases. In the former, all the words start with the “s” sound, while in the later, the letter “p” takes precedence. Aside from tongue twisters, alliteration is also used in poems, song lyrics, and even store or brand names.
In September 2012 a public consultation was launched in the UK to explore the ethical issues involved.  Human genetic engineering was used on a small scale to allow infertile women with genetic defects in their mitochondria to have children.  In June 2013, the United Kingdom government agreed to develop legislation that would legalize the 'three-person IVF ' procedure as a treatment to fix or eliminate mitochondrial diseases that are passed on from mother to child. The procedure could be offered from 29 October 2015 once regulations had been established.    Embryonic mitochondrial transplant and protofection have been proposed as a possible treatment for inherited mitochondrial disease, and allotopic expression of mitochondrial proteins as a radical treatment for mtDNA mutation load.