Reputation
2,829
Top tag
Next privilege 3,000 Rep.
Cast close & reopen votes
Badges
9 23
Newest
 Yearling
Impact
~35k people reached

Apr
9
comment Why are amino acids in biology homochiral?
Because I was bored, I found and added links to the citations from "Reasons for the occurrence of the twenty coded protein amino acids"
Apr
9
comment Is there any evolutionary advantage of selection of L-amino acid over D-amino acid?
There were some efforts to connect weak interaction and symmetry breaking in biomolecules. That is the most crazy-yet-still-vaguely-plausible thing I have ever heard. Well done
Jan
30
comment In a tumor, why hypoxic regions have access to glucose?
This is a great systems bio question. You could also take it a step back from cancer and ask something like "what are the absolute fluxes (input - output) of O2 and glucose in healthy tissue, and how does one affect the other?"
Jan
30
comment Why do mammals produce more carbon dioxide than insects?
Source and context, please. For example, it doesn't seem likely that a resting mammal will produce more CO2 than an insect running for its life. Could be, though
Jan
7
comment How do proteins perform their function
@Nathan Yes, the level of detail can be overwhelming, but modern science is capable of productively dealing with much of that detail. Remember that one of the ultimate goals of this type of work has always been to produce and control our own custom-made proteins. It's fiddly work. The lesson of the last 40 years of progress in this field is that the details matter, often in surprising and significant ways.
Jan
7
comment How do proteins perform their function
@Chris Your analogy is off by about 8 orders of magnitude in terms of the relative scale. Rather, it's like looking at all of the hundreds of gears, shafts, pistons, etc that make up a car's drivetrain in order to fully understand how it works. You don't just look at each of those parts in isolation, rather you try to characterize the network of their interactions.
Jan
5
comment How do proteins perform their function
@Chris Looking at the scale of atoms will not help understanding a molecular machine made of thousands of them. It does help, it's just really, really difficult.
Nov
10
comment “synapses grow closer together in order to decrease the distance”, is it true?
I think you're talking about Hebbian theory? My neuro professor used to summarize this as "Cells that fire together, wire together" (although apparently he was in fact quoting Carla Shatz).
Nov
10
comment Why are red blood cells considered to be cells?
I definitely agree with @Armatus about space being the likeliest explanation for the early loss of the nucleus. Also keep in mind that the total "nuclear flux" (and the processing load of the waste from that flux) would be the same whether the nuclei were lost early or lost late
Nov
10
comment Does soap kill human cells?
Can you please add a specific citation for the stuff about the Stratum corneum blocking triclosan? I can't find it anywhere
Aug
12
comment Variance in Fst in the infinite island model
Could you post a reference or two in which that equation is derived?
Aug
5
comment Is Mutation Theory still “valid” for complex organisms?
That's much clearer now, thanks
Aug
5
comment Is Mutation Theory still “valid” for complex organisms?
Empirical observations show that the number of base pairs is linearly correlated with the per-base pair mutation rate, so that the genome-wide mutation rate is more or less constant. Can you please expand on this a little more?
Jul
31
comment Approximately how long do bacteria live for?
@Orphee Are you trying to ask how long pathogenic bacteria live for in the human body? Because that's a completely different question
Jul
17
comment Have there been studies done to test Immortality of cancer cells in culture?
You're not even wrong
Jul
17
comment How to create a 3D density map of a system of varying number of particles?
well, have you tried anything so far?
Jun
16
comment How can a ligand be an integral membrane protein?
@MattDMo I changed the quote to match the new one on the Wiki and updated the wording in my answer a little bit to deemphasize small molecules
Jun
16
comment How can a ligand be an integral membrane protein?
@MattDMo That's legit. I can appreciate your point. If you feel strongly that this is wrong, edit the Wikipedia page and I'll update my quote to match.
Jun
15
comment How can a ligand be an integral membrane protein?
@Nandor Whelp, you're partially right, but mostly you're wrong. An enzyme's substrates are a subset of its ligands. See the edit for more details.
Jun
15
comment How can a ligand be an integral membrane protein?
You're thinking of hormones. Ligand is a much broader category of thing that includes everything that can be bound by some biomolecule.