6,596 reputation
2943
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location Marseille, France
age 33
visits member for 1 year, 11 months
seen Aug 8 at 12:42

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


May
13
comment Why do our eyes close when we sleep?
@speedoheck Because you need to be able to see of course! Take the car out if you like. In sleep, there is no such necessity. Also, we get a lot of visual cues from light and that affects the concentrations of certain hormones. I would guess that is also an important reason why our eyes need to be closed.
May
13
comment Why do our eyes close when we sleep?
@speedoheck 1) blinking requires muscle movement which sort of defeats the purpose of resting 2) closed eyelids offer much better protection than periodic blinking 3) if you can blink, you have eyelids. Why bother flapping the garage door up and down every few seconds when you could just close it and be done with it?
May
11
comment Do miRNA and antisense RNA do essentially the same thing?
@guest you're very welcome. If this answer solves your issue please take a minute and check the check mark under the vote count to the left, this will signify to everyone that your issue's been resolved.
May
11
comment Do miRNA and antisense RNA do essentially the same thing?
No reason not to post! The more the merrier :)
May
11
revised Do miRNA and antisense RNA do essentially the same thing?
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May
11
comment Do miRNA and antisense RNA do essentially the same thing?
Strictly speaking, it does not need to be complementary to mRNA. It can be complementary to any RNA moiety.
May
11
answered Do miRNA and antisense RNA do essentially the same thing?
May
11
comment chimeric sequences
Yes, but you're contradicting yourself. Some chimeric sequences are very real and exist in vivo. Others are artifacts, mistakes introduced by the sequencing process. Which ones are you asking about?
May
11
revised What is the difference between orthologs, paralogs and homologs?
edited body
May
10
comment Is there a possibility that medicine will affect the efficiency of natural selection?
You might be interested in this Q&A: How is evolution possible in contemporary humans?
May
10
comment Is there a possibility that medicine will affect the efficiency of natural selection?
"Humans aren't under a lot of selective pressure on a large scale right now." : That is completely wrong. Of course we're under selection! We live in a specific ecosystem and changes to that system affect our survival. We are under strong selective pressure to be animals that can survive a specific range of temperature, acidity and oxygen concentrations to name just a few. Anyway, the main driver of selection is always the way that mates are chosen and that is still going strong today. Not everyone in a generation reproduces => selection. Disease is a relatively minor player in this.
May
9
revised Evolution and the levels of selection
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May
8
comment What does chromosome CHR_Un, CHR_MT in the ftp site of NCBI mean?
@dexterdev I did not answer this, Chris did. I just edited which is why you see my name there. I don't know what Chris meant by that since I can't find that file on the FTP site nor see it mentioned in the FTP's README (which, by the way, you should read).
May
7
revised What does chromosome CHR_Un, CHR_MT in the ftp site of NCBI mean?
Made the formatting homogeneous.
May
6
comment translation of scientific names
This question appears to be off-topic because it is about nomenclature and the meanings of words in dead languages, not biology.
May
6
comment translation of scientific names
All you need to do is use a Latin/English and/or Greek/English dictionary. This is not really related to biology but linguistics.
May
5
comment Genome Project Focusing on gene ADRB2?
I ask again, please clarify. Arg/Arg16 is not a gene, its a genotype; I think the gene you mean is ADRB2. You still have not told us what is missing from the tools you are using. You have not explained what exactly you want to visualize nor what exactly you are looking at. I am beginning to guess you are after SNP variations but I'm not sure. You mention vertebrates, does that mean you want to do a comparative analysis of some sort? Please edit and be more specific.
May
4
comment Genome Project Focusing on gene ADRB2?
@Masi, all of them do that, that's the point og a genome browser. Can you please edit your question and narrow it down? I still don't know what you need that neither the UCSC nor Ensembl offer you. The only way to choose between them is personal choice or specific tools provided but since you don't explain what you want to do, it's hard to help.
May
4
comment Genome Project Focusing on gene ADRB2?
I don't understand what you're asking. Ensembl has subsections that let you look at a single genomes. The fact that the database has other genomes is irrelevant. What are you calling the "original Human Genome Project"? Do you mean UCSC? What kind of data do you want to visualize?
May
4
revised Genome Project Focusing on gene ADRB2?
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