Nobody knows. The origin of life on earth is a fairly enigmatic and elusive problem, the understanding of which is made difficult by the reliance on speculation to fill in the sizeable gaps in useful data. read more
The origin of life on earth is a fairly enigmatic and elusive problem, the understanding of which is made difficult by the reliance on speculation to fill in the sizeable gaps in useful data. However, either intentionally or unwittingly, you have described the principle division which describes the mains schools of thought on this process: i.e. whether genetics or metabolism came first. read more
The origin of life wars are in full swing as proponents of each hypothesis, replicator-first and metabolism-first theories, show how each other's theories cannot possibly work on the prebiotic earth. All current data indicates that the origin of life is extremely unlikely to have occurred through prebiotic chemistry on the early earth. read more
About the origin of life, different scientist holds different opinions. Some argue that metabolism has originated much earlier than replication (not reproduction),but others argue that replication has pridiated metabolism. read more