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location Marseille, France
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visits member for 2 years, 4 months
seen 7 hours ago

Elected moderator on Unix & Linux. Feel free to @ping me in chat if there's anything I can help you with.

I am a computational biologist with a background in biology, not computers. My PhD work was on gene prediction and comparative genomics but my current research is in systems biology, specifically protein-protein interaction networks.

profile for terdon on Stack Exchange, a network of free, community-driven Q&A sites


Mar
27
comment How does the creative process of Biological Evolution work?
@fileunderwater yes, that is a very good point. I commented when this question was at -2 with 1) no explanation of why people downvoted 2) no attempts to edit it into shape (I have now tried to do so) 3) no suggestions on how to improve. Had this been on another subject, we would have done all three. I just don't want us to downvote only because we disagree with the views expressed. I feel that one of the most important things this site can accomplish is to refute pseudoscience and any creationist/ID advocate who's willing to post here deserves a good answer. Shoved down their throats.
Mar
27
revised How does the creative process of Biological Evolution work?
deleted 2402 characters in body
Mar
27
awarded  Nice Answer
Mar
27
comment DNA of the human body?
@Jody I kind of figured that's what you were after :). You're very welcome.
Mar
26
answered DNA of the human body?
Mar
26
revised How does the creative process of Biological Evolution work?
added 77 characters in body
Mar
26
comment How does the creative process of Biological Evolution work?
@adamwong246 again, that's completely besides the point. The Q&As here are not only for the OP and this is the same for all sites on the SE network. We aim to be a repository of useful information.
Mar
26
revised How does the creative process of Biological Evolution work?
Added paragraphs and corrected a couple of errrors
Mar
26
comment How does the creative process of Biological Evolution work?
@adamwong246 that's irrelevant. Remember that the SE sites are wikis and the information we give should not be aimed at the OP alone. The basic misconceptions here can be addressed, I've tried to do so in my answer. As I'm sure you know creationist and ID arguments tend to be ridiculously easy to shoot down, just like this one is. We should welcome the chance to do so in the hope that we might increase the understanding, if not of the OP, then of the next poor misguided soul who has fallen under the influence of pseudoscience.
Mar
26
comment How does the creative process of Biological Evolution work?
The last comment was not directed at you, but to the regulars of the site. However, you might be interested in these: How does the modern theory of evolution solve these apparent problems?, How does evolution produce complex organs and Human evolution: Where *exactly* did the first human come from, whose parents were not? among other Q&As on the site.
Mar
26
comment How does the creative process of Biological Evolution work?
Please do not downvote questions because they disagree with our views. This is a fair question, despite being a little bit to close to a rant. The arguments presented are wrong, yes, but that is a reason to answer, and explain to the OP using arguments, not to downvote. We should welcome this type of question and do our best to answer it well.
Mar
26
revised How does the creative process of Biological Evolution work?
added 402 characters in body
Mar
26
comment How does the creative process of Biological Evolution work?
@LotusBiology while it is true that some organisms outcompete their peers, the word better is a moral construct and has no bearing here. More efficient is the best you can say.
Mar
26
answered How does the creative process of Biological Evolution work?
Mar
24
comment Clustal Omega - convert from distance into # of substitutions
What exactly do you mean by "positions" in your alignment? How many sequences are we talking about? Can you show an example of the matrix and your desired result?
Mar
24
comment Are there specific features of birds that cats/small predators are attracted to?
@shigeta they do? I would have guessed they use their echolocation.
Mar
24
comment Are there specific features of birds that cats/small predators are attracted to?
Heh, what an interesting idea! I suspect you won't succeed (though I hope I'm wrong), I think that cats are more attracted to movement than anything else. They seem to jump at anything that moves.
Mar
18
comment How can I re-format my DNA motifs' position weight matrices?
I'm not familiar with this program either but PWMs in general are always relative. What you get is a value indicating how often a particular residue is found a t a given position. Multiplying with an arbitrary value shouldn't affect the result in any way, as long as you multiple all values. Basically 1 means you always have that residue at that position. If you multiply by say 100, you can treat them as percentages. But yes, the implementations could vary depending on what you're feeding them to.
Mar
18
comment How can I re-format my DNA motifs' position weight matrices?
Yes, his solution is cleaner but I doubt there will be any difference. Remember that PWMs are relative so multiplying by anything should be fine really.
Mar
18
comment How can I re-format my DNA motifs' position weight matrices?
Why not just multiply everything by 10? The PWM will still be correct since its values are relative to each other, you just make 1.00 into 10 and 0.28 into 28 etc.