George M. Church Quotes
The first thing you have to do is to sequence the Neanderthal genome, and that has actually been done. The next step would be to chop this genome up into, say, 10,000 chunks and then... assemble all the chunks in a human stem cell, which would enable you to finally create a Neanderthal clone.
Church, George M. "Can Neanderthals Be Brought Back from the Dead?" Interview by Samiha Shafy. Der Spiegel, 18 Jan. 2013.
George McDonald Church is an American geneticist, molecular engineer, and chemist. He is the Robert Winthrop Professor of Genetics at Harvard Medical School, Professor of Health Sciences and Technology at Harvard and MIT, and a founding member of the Wyss Institute for Biologically Inspired Engineering. As of March 2017, Church serves as a member of the Bulletin of the Atomic Scientists' Board of Sponsors.