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Apr
4
asked How do axon terminals report to the soma?
Apr
4
comment What is range of the number of individual organelles in cells
Yes @terdon definitely has a point. In fact, organelle concentration is very different even in different parts of a single cell. E.g. the axon terminals of neurons contain a lof ot mitochondria to provide ATP for continuous firing, while the cell soma (the main body, which can be more than 1m away) contains much fewer of them. Another case, most cells only have one nucleus. Certain cell types like skeletal and cardiac muscle or the placental trophoblasts however fuse and form multinucleated cells.
Apr
3
comment Why Do Nerve Signals Get Crossed?
How clear is that sensation? Does it correspond to your finger movement, i.e. are you certain that it is a misprojection of the sensation (onto the wrong part of your body)? With such a rare occurrence it could just be a random error.
Apr
3
comment Why Do Nerve Signals Get Crossed?
What I meant was things like, if it was mislocated on the same spot but opposite side of the body for example; but it seems to be random. The other question was what exactly causes it to happen - does it only occur when you are scratching yourself after you were itching or also in other situations?
Apr
3
comment Why Do Nerve Signals Get Crossed?
Could you clarify exactly how the sensation is wrong for you? You are supposed to have an itch for whatever reason, and when you scratch it it's supposed to go away and you get the touch sensation of your fingers instead. All in the same place of course. Are you saying that the actual touch sensation of your fingers on your skin is mislocated? If so, is there a regularity to where it is mislocated (e.g. symmetrical to body axis)? And does this only occur on skin that was itching before, or any part at any time?
Apr
3
answered Why does contracting the iris allow less intense light to go in?
Apr
1
revised Is it technically possible to make someone see something when their eyes are closed?
deleted 3 characters in body
Apr
1
answered Is it technically possible to make someone see something when their eyes are closed?
Mar
31
revised If life is discovered on another planet, will it likely be classified using the current domain/kingdom/phylum system?
added 640 characters in body
Mar
30
comment If life is discovered on another planet, will it likely be classified using the current domain/kingdom/phylum system?
Valid point, does that sound better? I have to say that this made me realise the question could stir discussion more than encouraging an objective answer, so may be a candidate for closing.
Mar
30
revised If life is discovered on another planet, will it likely be classified using the current domain/kingdom/phylum system?
what's up with my o's and u's tonight
Mar
29
comment DNA gel extraction: chemical contaminants
Agree, you should check the reading before digestion and see what amount of DNA you're working with.
Mar
29
answered If life is discovered on another planet, will it likely be classified using the current domain/kingdom/phylum system?
Mar
29
reviewed Close RACE pcr product
Mar
27
awarded  Custodian
Mar
27
reviewed Reviewed What is a simple protocol for staining cells in suspension?
Mar
27
comment What is a simple protocol for staining cells in suspension?
That's probably part of his question ;)
Mar
25
comment Why do some people find vegetables so repellent when evolutionarily they should find them an attractive and thus tasty food?
While I'm flattered that you accepted my answer already, I would suggest that you leave it open for a bit longer to encourage other people to give their answers. My answer was not a very good answer in the sense that it's only reasoning and not drawing upon any reliable sources :)
Mar
25
comment Why do some people find vegetables so repellent when evolutionarily they should find them an attractive and thus tasty food?
Attractiveness is a cultural value - it wasn't long ago (only a few hundred years) that the ideal figure was actually everything else than slim. Have a look at depictions of beautiful women and men in art throughout the centuries (e.g. in the antique god/esses of beauty, or paintings of literary figures which are supposed to be beautiful). Healthiness also depends on context. As I said, today what we consider healthy are things that sustain a healthy body for a long life. Not long ago, what was healthy were things that sustain life at all.
Mar
25
answered Why do some people find vegetables so repellent when evolutionarily they should find them an attractive and thus tasty food?