Natural Science Forum / Biology / Evolution / April 2007

I'm reading a biochemistry book and they mention that UV
absorption by single stranded DNA is about 40% higher
than by double stranded DNA at 260nm.
(Hyperchromic effect that results from the unstacking of the base pairs).

Name something more stable than life.
Inert gases and zircon. What else?
How about the air, the water, the earth.
Air - the atmosphere at the start of life is not the same as

Animation on Genetic Mutations.
http://bioisolutions.blogspot.com/2007/04/mutation.html
or
http://tinyurl.com/2ynd7u

I have been pushing the tidal pool idea, with many more being fed by
enormous lunar tides, but I wasn't really focusing on my real point,
though those tides still would have led to enormous amounts of
materials being taken off land and churned continously in the ocean.

A paper on the evolution of the bacterial flagellum (here and here)
http://www.pnas.org/cgi/content/abstract/0700266104v1
http://sciencenow.sciencemag.org/cgi/content/full/2007/417/3
has triggered some critical comments from bloggers (here and here).

Scientists shake Darwin's foundation -- chickens inherited parents' stress
symptoms
Evolutionary theory ever since Darwin is based on the assumption that
acquired traits, such as learnt modifications of behaviour, cannot be

In a BBC TV documentary yesterday about orang-utans it was said that
these apes are seven times as strong as humans. I have seen similar
claims made for chimpanzees, though I think usually 3 or 4 times as
strong rather than 7 times.

How much stock does anybody here put into the gigantic early lunar
tides having had a role in the origin of the first self replicating
molecule, whether from the work of Richard Lathe, or other sources?
I heard this possible role of the Moon in a TV documentary talking

"Bob Kolker" <nowhere@nowhere.com> wrote in message news:evrn5o$fq0$1@darwin.ediacara.org...

Apparently it doesn't fit the evolutionary model?

Paleoclimatology tells us  the climate has swung many times between
polar and tropical conditions. Then why is there no case of reverse
evolution ? If external conditions select a mutation from A to B then
when you reverse the conditions the mutation from B to A should

"Religion can be seen as another special ingredient of human
societies, though one that emerged thousands of years after
morality, in Dr. de Waal¹s view. There are clear precursors of
morality in nonhuman primates, but no precursors of religion. So it

Three questions related to the early evolution of bone in the chordate
phylum.
1) Are the head shields of ostracoderms homologous to skulls?
2) Is there any indication that they had hard bone other than their

"The planet that hit the earth to create the moon - Question"
c8c5c24b8d8Jack Crenshaw
Cra...@gmail.com wrote:

Primordial Soup's On: Scientists Repeat Evolution's Most Famous Experiment
Their results could change the way we imagine life arose on early Earth
By Douglas Fox
A Frankensteinesque contraption of glass bulbs and crackling electrodes has