Humans/mammals have 50 times more coding DNA than simple fungi they've syntesized so far. Plus natural mammal DNA is usually subdivided into multiple pieces on

Humans/mammals have 50 times more coding DNA than simple fungi they've syntesized so far. Plus natural mammal DNA is usually subdivided into multiple pieces on a chromosome called introns. It is unclear how important the non-coding inbetween DNA is. Homever nearly the entire lab mouse genome has been purified into single pieces called coding DNA and can be purchased from labs. Maybe they'll try synthezing a mouse first. The human case shouldnt be more difficult.