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visits member for 1 year, 7 months
seen Apr 11 at 2:38

Feb
27
comment How do we know that everybody's DNA fingerprint is unique?
Essentially, for the same reason we "know" that no one is going to be struck by lightning 100 times. It is possible but highly unlikely.
Feb
27
comment Length differences between physically interacting proteins
@Uri it seems like you mean to ask about 3D size rather than sequence length, is that correct? In other words, you are using sequence length as a proxy for some 3D size property.
Dec
16
comment How easy is it to carry out de novo sequence assembly?
@ThomasIngalls I mean assembling a complex genome de novo using high-throughput sequencing. Resequencing assembly is not de novo assembly.
Jul
30
comment Why isn't there a standard unit of promoter strength?
I think the quantity you suggest is suitable only if the relations between the different factors is linear. Is there any proof of that?
Jul
28
comment Why isn't a virus “alive”?
@nico actually you are mistaken. It is not true that the virus exists only when it is assembled into a capsid. The correct name is virus at all stages (you can check the definition). When it is in a capsid it is called a virion.
Jul
27
comment Why isn't a virus “alive”?
@nico a cell has a relatively clear definition and it must have its own membrane. A cell with double the DNA is not 2 cells, it is one cell with double the DNA. There is a point at which the cell divides and the membranes are separated - that is when it becomes a separate entity.
Jul
27
comment Why isn't a virus “alive”?
@nico that is why I wrote "the answer will be no for most people", i.e. under most definitions of life. I do not know of any robust definition of life that considers a piece of DNA to be alive. Also I completely agree with Jack - a cell is never a piece of DNA, under any possible definition.
Jul
27
comment Why isn't a virus “alive”?
@nico sorry I didn't understand - how is a cell a piece of DNA/RNA?
Jul
26
comment How do cells figure out the big-picture shape?
That is exactly what is studied in developmental biology, which is a huge field of research.
Jul
23
comment Has synthetic biology created new plants or animals as of 2013?
Can you define "new"? Is a genetically modified species "new"?
Jul
15
comment which exact mechanism triggers the first cell differentiation after n divisions?
There are two different questions here. One is how "identical" cells become different types of cells. The other is why do the cells start differentiating when they do.
Jul
14
comment What does “fit” mean in “survival of the fittest”?
Such definitions will always be lacking, in my opinion. For example, what if an organism has tons of grandchildren but they are all sterile?
Jul
13
comment How to learn biomathematics?
This is highly relevant: biology.stackexchange.com/questions/9102/…
Jul
5
comment Suitable introductory book on Bioinformatics for a computer scientist?
"Biological Sequence Analysis" by Durbin et al. is the classic bioinformatics text for people with a CS background. If you are interested in a more quantitative approach to biology without necessarily focusing on algorithms, you will also probably find "An Introduction to Systems Biology" by Uri Alon and "Physical Biology of the Cell" by Phillips et al. interesting (depending on your area of interest). Additionally, any Machine Learning text will be relevant and some often have examples from biology/bioinformatics.
Jul
3
comment What is the viability of Intelligent Design as a supplement to chemical abiogenesis and Darwinian Evolution?
@KonradRudolph I completely agree, and this is the exactly my point. I am not saying that the "80% functional" claim is incorrect, just that it means something very different than what the ID people think it means, and it doesn't support ID in any case. Sorry if that was not clear.
Jul
3
comment What is the viability of Intelligent Design as a supplement to chemical abiogenesis and Darwinian Evolution?
Regarding "junk DNA": The claim of 80% functional DNA is using a very very broad definition of "functional". The claim is strongly debated - for a non-scientific piece see guardian.co.uk/science/2013/feb/24/… . Even if it were true, I do not see how this supports ID.
Jun
26
comment Single Nucleotide Polymorphisms and diseases
@Zizo Google it - it is easy to find.
Jun
26
comment Single Nucleotide Polymorphisms and diseases
@Zizo here is an actual example where a SNP in a regulatory region leads to disease: ncbi.nlm.nih.gov/pubmed/16728641
Jun
17
comment Information Gene HBA2
Gene size will not include the promoter. The main reason is that the exact location of the promoter is not defined (or defined arbitrarily).
Apr
13
comment The oldest common ancesstor of all human beings
Isn't that Adam? ;)