Search found 4 matches

by titanman
Sun Sep 23, 2007 2:37 pm
Forum: Evolution
Topic: Metabolism or Replication First?
Replies: 14
Views: 12250

We have no evidence to assume that the first living forms on earth possess all characteristics of modern creatures. They only have a kind or several kinds of them. So I can say that metabolism and replication have not originated at the same time.
by titanman
Mon Sep 17, 2007 3:21 pm
Forum: Evolution
Topic: Metabolism or Replication First?
Replies: 14
Views: 12250

In my opinion, replication is not equal to reproduction, although lots of people often confused the two natural phenomenon. Reproduction means something increase their number in approximate way, and replication means a molecule making an exact copy of itself, for example, DNA replication. I think, i...
by titanman
Sat Sep 15, 2007 3:56 pm
Forum: Evolution
Topic: Metabolism or Replication First?
Replies: 14
Views: 12250

Metabolism or Replication First?

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. In my opinion, metabolism is more ancient than replication. But what do you t...
by titanman
Mon Aug 27, 2007 11:27 am
Forum: General Discussion
Topic: life and non-life...
Replies: 17
Views: 14689

The distinction between life and nonlife?

According to Freeman Dyson, who is author of "origin of life", living things have two primary characteristics: metabolism and replication . All nonliving things do not possess either of those characteristics. Then we can define life. But the main problem now is the nature of metabolism and...