Search found 106 matches

by AstraSequi
Mon Feb 13, 2012 7:21 am
Forum: Off Topic Discussion
Topic: Which theory may explain paranormal phenomena?
Replies: 8
Views: 6362

There is no such thing as a "heretical" idea in science, so long as you can support it with proper (verifiable, falsifiable, controlled) evidence. If someone wishes to promote a particular theory, they must provide predictions that are made by that theory, and experimental tests that would...
by AstraSequi
Sun Feb 12, 2012 1:44 am
Forum: Genetics
Topic: SOS RESPONSE! Recombinant DNA
Replies: 1
Views: 2592

Hi there, I'm not exactly sure I understand your questions, but I can mention a few things: For your first question: the reason that these problems occur is because of the differences between the eukaryotic and bacterial systems, which I think you understand (so, for example, you would want to delet...
by AstraSequi
Sat Feb 11, 2012 11:04 pm
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 563
Views: 1831833

Re: Theories - Origin of Life

Does the original article make the claim of independent origin? No - in fact, the populations discussed in the paper share very recent common ancestry (the North and South American populations were founded from the Old World populations within the last 35 years), and the inversions have been known ...
by AstraSequi
Sat Feb 11, 2012 12:34 am
Forum: Human Biology
Topic: We are programmed entity
Replies: 4
Views: 5447

Re: We are programmed entity

Most definitely! To use your example, males who have a lesser feeling of attraction for the female will leave fewer children (because they won't be as interested), so over time the population changes as a result - and the change will continue until the conditions change or the costs of further chang...
by AstraSequi
Fri Feb 10, 2012 9:01 pm
Forum: Evolution
Topic: Theories - Origin of Life
Replies: 563
Views: 1831833

Re: Theories - Origin of Life

So these inversions are proportional to average temperatures. This of course means that random mutations are clearly not involved and random mutations is a key driving force in Darwinian evolution. Furthermore, since there is this direct connection between temperature (environmental pressure) and t...
by AstraSequi
Thu Feb 09, 2012 7:20 am
Forum: Human Biology
Topic: Reading Blood under a microscope
Replies: 7
Views: 22628

1) Yes, red blood cells. 2) Stacks of red blood cells, as Jack said. They are called rouleaux, and naturally occur due to the affinity of RBCs for each other. The stacking helps them to travel more efficiently in capillaries. 3) Almost certainly a neutrophil; the dots are lobes of the nucleus. Neutr...
by AstraSequi
Thu Feb 09, 2012 5:56 am
Forum: Evolution
Topic: EVOLUSION CONFIRMED BY GOD
Replies: 2
Views: 3366

Don't forget that there's a lot of evidence in the animals of today as well - especially in the anatomy and genetic code. I suppose you would still have to travel to figure that out though. :)
by AstraSequi
Thu Feb 09, 2012 5:13 am
Forum: Evolution
Topic: Any SOLID arguments against evolution?
Replies: 309
Views: 785829

Re: Any SOLID arguments against evolution?

I'm spending far more time on this than I had intended... What I mean is: ... Is it clearer now? Yes, thank you. Now - if such an experiment was repeated in a laboratory, what would you think had been demonstrated? Or suppose some different criterion were met instead: - if the experiment showed that...
by AstraSequi
Wed Feb 08, 2012 3:38 am
Forum: Evolution
Topic: Any SOLID arguments against evolution?
Replies: 309
Views: 785829

Re: Re:

What specific experiment or experiments would convince you? That's what I mean when I ask for standards of evidence. 1) To make evolve in a lab (e.g. a ground completely desinfected of life), spontaneously a simple form of life: it can be even used a completely desinfected lake, with complete absen...
by AstraSequi
Tue Feb 07, 2012 6:58 am
Forum: Microbiology
Topic: Multicellular prokaryote
Replies: 28
Views: 76694

Re: Multicellular prokaryote

I wouldn't mind defining multicellular organisms to be those organisms with a defined/heritable body plan. Then I think there wouldn't be any prokaryotes that met that requirement. How would that sound? I say this mainly because I think many biofilms also have functional specializations yet we proba...
by AstraSequi
Tue Feb 07, 2012 5:29 am
Forum: Evolution
Topic: The Keyhole Paradox: Challenging universal common descent.
Replies: 5
Views: 10376

The problem lies in the incompatibility factors between the current reproductive system and the one that, based on the reproductive systems of most mammals, would have existed in the hypothetical state before this reproductive system made its two-stage proliferation to encompass all felines. The mo...
by AstraSequi
Tue Feb 07, 2012 12:42 am
Forum: Evolution
Topic: The Keyhole Paradox: Challenging universal common descent.
Replies: 5
Views: 10376

Complementary mutations do not need to arise at the same time. If the barbs give the male an advantage, that does not require females to only be receptive to males with barbs as well; there is an advantage to the male even without that. At any time after the males obtained their barbs, then there wa...