Re: evolution question?

In message <1hysro2.1dz3caj1ug24lsN%j.wilkins1@xxxxxxxxx>, John Wilkins <j.wilkins1@xxxxxxxxx> writes
Ross Langerak <rlangerak@xxxxxxxxxxxxx> wrote:

"Toadface" <mr_toadface@xxxxxxxxxxx> wrote in message
news:1180228862.614697.115770@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> On 26 May, 18:04, Vend <ven...@xxxxxxxxxxx> wrote:
>> On 27 Mag, 02:32, Toadface <mr_toadf...@xxxxxxxxxxx> wrote:
>>
>> > domestic cats and dogs and (politically incorrect) white skined
>> > eurepeons all demonstrate how genetic information is lost along the
>> > way
>>
>> Really? show me.
>
> just do some 'real' scientific experiments on a domestic cat and i'm
> sure u may find it's not quite the Lion/Tiger etc tha t it "evolved"
> from!
>
> i.e. put a domectic cat and a Lion in a test tube and i'm quite sure
> that the big Lion may conatain far more DNA than little moggy!
>
Fitness is not determined by the amount of DNA. Fitness is determined by
how well a species is adapted to a particular environment. Put a lion and a
cat together in a room, and the lion will likely kill the cat. Put the lion
in an urban environment, and the lion will likely be killed by the
residents. The cat, on the other hand, is well adapted to living with
people. Fitness is determined with respect to a particular environment, not
by direct competition between two species (at least not in this case).

And unless the lion is a polyploid or has some other duplication in its
genome, I'm willing to bet that the moggy and the lion have roughly the
same amount of DNA...

You are referring to the amount of DNA per cell, which is indeed pretty much the same (assuming that a tiger is a reasonable proxy for a lion). The earlier poster may be confused enough to be referring to the amount of DNA per organism, where a lion would have more DNA than domestic cat.
--
alias Ernest Major

.

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