On Thursday, September 27, 2018 at 6:27:20 AM UTC-6, Gary Harnagel wrote:

I suspect that ALL life will have the same DNA.

Why?

Some forms of life on Earth actually code for proteins slightly differently from
most, and so even if DNA were the only way to store genetic information, the
genetic code would be completely different in life that had developed
independently.

John Savard