Re: 1st D.N.A Replication

spintronic wrote:

You are confused on several grounds.

1. Telomeres are not there for the purpose of "preventing the ends from
fraying". Lots of organisms don't have temomeres, anyway. Many
chromosomes are circular, and have no ends anyway.

2. You can replicate DNA in the lab (using PCR) without any enzymes
other than the DNA polymerase. Heat splits the helix.

3. Early genomes would have been a lot shorter than any chromosome in
the current human genome, and could have been organized into several
chunks, too.

4. None of this is likely to be relevant, as DNA probably arose in a
cell with an RNA genome and proteins already present.


Right, telomers are basically a buffer, to prevent the shortening of
the dna information after repeated replications. So simply put they do
prevent the ends being suceptible to random interference. Since "fusion
of the chromosones" occurs when the telomers are broken down the
occurance of random interference increases with out telomers.
http://www.chemsoc.org/exemplarchem/entries/2003/imperial_Burgoine/origins.txt.html
Scroll down theres a pic of chromosone fusion.

PCR is synthetic and prone to extreme errors, Heat replication also
breaks down the nucleotides so is not a great way to copy genetic
information from generation to generation.

Point 3 agreed!

Are you saying that CELLS appeared before DNA, because dna replication
is crucial to cell replication.

Now it is. Perhaps then it wasn't.

Since RNA is mostly transcribed from dna, and contains Uracil instead
of thymine, DNA depends on enzymes to prevent the Genetic code being
corrupted undetectably by Uracil, Are we to assume these "filtration"
enzymes were "just" present also?

No. Perhaps they all evolved gradually. Like I said, you need to look up
"RNA World".

Because upto now you have highly specialised enzymes and proteins to
not only replicate your first DNA strand, but now you need a filtration
system to prevent the Uracil from corrupting our first DNA strand.

Now you have to worry about "Event dependant probability". In simple
terms, unlike the ordinary probability of an event happening, (which
are highly unlikely even for rna because of destructive interference,
Dont forget all you are saying upto now is nicely tucked away in a
"protective CELL enviroment" which wouldnt have been prescent) But now
you have to worry about highly unlikely events being dependant upon
other highly unlikely events. The odds now become increasingly = 0.

I have no clear idea what you are talking about here; it's too confused.
But if you would read some of the literature on the subject, you might
learn something.

Or is your real purpose just to show everyone that a natural origin for
life is impossible? Are you, in the end, just a stealth creationist?

.

Relevant Pages

  • Re: 1st D.N.A Replication
    ... chromosomes are circular, ... You can replicate DNA in the lab without any enzymes ... of the chromosones" occurs when the telomers are broken down the ... Are you saying that CELLS appeared before DNA, because dna replication ...
    (talk.origins)
  • Re: 1st D.N.A Replication
    ... chromosomes are circular, ... You can replicate DNA in the lab without any enzymes ... of the chromosones" occurs when the telomers are broken down the ... Are you saying that CELLS appeared before DNA, because dna replication ...
    (talk.origins)
  • Re: 1st D.N.A Replication
    ... chromosomes are circular, ... You can replicate DNA in the lab without any enzymes ... of the chromosones" occurs when the telomers are broken down the ... Are you saying that CELLS appeared before DNA, because dna replication ...
    (talk.origins)
  • Re: Yet again, human evolution: huh?
    ... But you say DNA ... >>replication and transcription. ... > transcription progress in the same direction in all known life on ... Or to put it more simply: a phylogenetic tree represents the ...
    (talk.origins)
  • Re: Laughable worldview of atheists
    ... there was only random atomic motion of dead atoms. ... But simply constructing the first DNA strand was not enough. ... This first DNA replication, conducted by recently dead atoms, ...
    (talk.origins)