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location Marseille, France
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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.


Mar
28
comment Can mammals from different species reproduce?
In fact, one of the many definitions of a species is that if two animals cannot reproduce, they are different species. This is kind of simplistic of course, but it is one of the definitions.
Mar
27
comment Expanding the SETI initiative to seek intelligent data within DNA sequences?
Unfortunately most of the highly conserved non coding material that you mention comes from viruses which are not really prime candidates for intelligence.
Mar
25
comment More proteins from diet when common cold and flu?
Who says antigens must be proteins? Is this true? Many will be peptides of course but surely not all antigens are proteins. Anyway, you don't build antigens, whatever pathogen has infected you does.
Mar
25
revised More proteins from diet when common cold and flu?
I assume you were not talking to your couch :)
Mar
25
comment Are there nutritional benefits to drinking diluted urine?
Wow, OK, even glucose! Though I have my doubts as to the nutritional value of glucose at 200mg/l. That's a lot of urine for very little sugar... :)
Mar
24
comment Are there nutritional benefits to drinking diluted urine?
Any references? Who says there are nutrients in urine? Sounds weird to me.
Mar
24
comment molecular bonds of organic atoms
This question is about basic chemistry, not biology. You seem to have misunderstood the concept of how chemical bonds are formed. Oxygen is no exception, it can make the two bonds needed to fill its outer shell with eight electrons. See here for more information or pick up a basic chemistry text book. Voting to close.
Mar
24
revised molecular bonds of organic atoms
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Mar
22
comment Is there a way to measure the amount of bytes that are possible to encode in a DNA molecule?
You might find this thread over at skeptics interesting.
Mar
21
comment What are usable Sum formulas for Proteins?
The downvote (was not cast by me) is probably because: 1) what does "nutrients" mean in this context? 2) What exactly do you need? The chemical formula you are posting could conceivably describe a small peptide but not an entire protein (unless it is a very very small one). 3) Protein sizes vary enormously, what kind of formula are you looking for? The average content in H,O,N and C in proteins? 4) Where do you get the 15-19% values? I don't see that in the page you linked to. 5) What exactly are you trying to do, why do you want this formula?
Mar
21
revised Why is that all the animals can swim in water without learning to swim but humans cannot?
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Mar
21
answered Why is that all the animals can swim in water without learning to swim but humans cannot?
Mar
13
comment Are descriptive statistics sometimes more useful than tests of significance?
Of course reading BLAST e-values as p-values is wrong. e-values give the number of hits of this quality you would expect to find by chance, given the size of the hit and the size of the database (and the composition of the sequences in question, low complexity etc). They do not give the probability of finding such a hit. They are not even similar to p-values and should never be confused.
Mar
8
comment What are sulphur contents of diverse biological materials (mostly plants and excrements)?
Which protein? Which plant? Which part of the plant? Grown on what soil? Whose feces? After what diet? whose eggs? This question is too broad to be answerable in its curent form.
Mar
5
awarded  Popular Question
Mar
4
comment Types of bacteria that will kill other types of bacteria?
What do you mean by types? Species? In any case, @JackAidley said it all.
Mar
4
comment Does one neurotransmitter travel all the way through the nervous system?
@DarkLightA some are pretty long. In a human body, they can be more than a meter in length.
Mar
4
revised Serotonin - Does being aroused make you sleepy?
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Mar
4
answered Serotonin - Does being aroused make you sleepy?
Mar
4
revised Serotonin - Does being aroused make you sleepy?
edited body; edited title