In the beginning there was......
from my limited understanding, perhaps someone can fill in the blanks.
From what I remember the four bases of DNA are Guanine, Cytosine, Adenine and Thymine. Depending on what order they are placed they do different things. Like a computer code, when written correctly they mean something, do something ,when they are not they don't.
DNA must be arranged in such a manner as to do something.
But how does it know what to do?
While DNA has physical properties it also has information, where does that come from in not a designer?
the computer language appears on a screen and perhaps a C.A.D. program where a "designer" uses it to create or perform a task.
If abiogenesis happened where did the information come from that tells the DNA how to replicate, what to produce etc all those things needed for "life"?
If life's only purpose is to self replicate, where did that come from, how did that come to be?
Simplests answer that I know of (until I learn otherwise) is it was designed that way.
We don't know one way or the other yet, perhaps no one ever will.