Question

There is a huge number (1.5 x 1084) of possible genetic codes. However, the genetic code used by all known forms of life is nearly universal. This suggests that

Answer 1

There is a huge number (1.5 x 1084) of possible genetic codes. However, the genetic code used by all known forms of life is nearly universal. This suggests that life evolved from a single source.

Answer 2

Life evolved from a single source.