Reputation
1,357
Top tag
Next privilege 2,000 Rep.
Edit questions and answers
Badges
2 18
Newest
 Yearling
Impact
~24k people reached

Jul
29
comment What is this flower?
For the violet/purple I would guess it is some variety of petunia. (Sorry, I wanted to edit my comment but that guess came 1 minute too late to do so.)
Jul
29
comment What is this flower?
Are you asking about the violet flower or the white/pink one?
Jul
22
comment Secretion in Gram negative bacteria
All we know, I would say. But that was not what I meant to point out. The mere existence of a secretion system does not mean there is something harmful to be secreted, or that it can be secreted into a human cell. Even if the "generalised system" is said to be able to secrete into a human cell, there might be mutations in some bacteria which change it into being less or more effective. Even if the secretion system is not mutated, the bacteria might need additional systems to adhere to a cell or adhere more strongly.
Jul
22
answered Secretion in Gram negative bacteria
Jul
7
comment Why do humans find baby animals cute?
@GoodGravy Of course evolution is random, but a winning scheme means that it increases fitness, otherwise it would not be winning. Therefor selection is driving to preserve the winning schemes and they are conserved during speciation events. For a publication I don't have time today, but a fast search will provide you this: ncbi.nlm.nih.gov/pubmed/19175530 I remember there was another for dog/human and something explaining cats nursing ducklings.
Jul
1
comment What concentration of table salt is needed to kill bacteria in sweaty gym clothes?
I just wanted to throw in, that if you are using fancy gym cloths (made out of those nice fabrics which are supposed to help air circulation and such, I am not an expert on what they actually can do), soaking them in salt water might actually destroy your expensive gym clothes in the long run.
Jun
30
comment What is it that creates that wonderful smell after a fresh rain?
The fancy word for it seems to be petrichor. It has a nice wikipedia article which might lead you to some of the relevant publications. en.wikipedia.org/wiki/Petrichor
Jun
19
awarded  Yearling
Jun
17
comment Is this species a variant of a red flour beetle?
Then it is from my understanding perfectly normal environment for a Melolontha melolontha.
Jun
17
answered Is this species a variant of a red flour beetle?
Jun
11
comment Is hunger pushing cognitive ability in humans?
@rumtscho I was kind of looking for that biological answer, especially any additional explanation to the ghrelin theory from the newspaper article. I am not at all into cognitive science, so saw this as a biological (endocrinology) question.
Jun
11
comment How Scientists sequence, assemble and annotate plant genomes?
There is a variety of alignment tools, the most used and most widely known is BLAST. There is a web server at blast.ncbi.nlm.nih.gov/Blast.cgi but for complete plant assemblies or even all proteins found in one plant you would have to install and run it locally. In case you are not aligning pre-predicted protein sequences but want to align against RNA or protein databases, you would need a spliced aligner.
Jun
10
answered How Scientists sequence, assemble and annotate plant genomes?
Jun
10
comment Is hunger pushing cognitive ability in humans?
Still it is curious for me because it is so counterintuitive. Most people I know if they have to work hard on a cognitive level they tend to snack nuts, chocolate, anything they are used to to keep their attention up. And this does boost your attention for a short while. The mild fasting on the other hand seems to be a more long-term approach (long-term being around 6 hours).
Jun
10
awarded  Caucus
Jun
10
asked Is hunger pushing cognitive ability in humans?
Jun
8
comment A free book/resource for learning genetics?
@Lohoris: Different countries, different "grad schools". Here I am, doing my PhD and being paid (not a huge amount, but well enough to survive for sure) for teaching and working on research projects. This is how it can work in Germany. There is also stipends and whatnot.
Jun
8
comment Do DNA supply houses maintain a watch list for dangerous oligos (Anthrax, Smallpox, etc.)?
I guess the fear is not necessarily to have someone produce a viable virulent anthrax from a DNA sample, but to have them introduce virulence factors of those watched pathogens into previously harmless organisms they could easily buy and grow.
Jun
2
comment Do babies resemble their father?
Most babies don't have a lot of (long) hair, while quite some of their mums will.
Jun
1
awarded  Organizer