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21h
awarded  Autobiographer
2d
comment Why would I not get a hangover anymore after losing weight?
I guess to changed your diet to loose weight, so you would now eat different things that might be causing you to feel less sick in combination with alcohol. To keep it anecdotal, I learned that different foods go well or bad with different types of alcohol, and some do me no good at all.
2d
comment Were we able to create vitamin B12 in past?
Remember that a herbivore still eats a very different diet compared to a vegetarian. (Raw, high in fiber,...) And they do also have different microbiota, yes. But again, as I am not an expert in the cobalamin synthesis, I cannot explain you the mechanism and thus also not decide how it would be different in a herbivore.
May
19
comment Were we able to create vitamin B12 in past?
It is still the bacteria creating it. I am not an expert in cobalamin synthesis pathways of bacteria, but I guess they need something which is more prevalent in non-vegetarian food to produce it. After all, the bacteria in you gut mainly eat what you eat.
May
18
comment Were we able to create vitamin B12 in past?
There are bacteria in the human gut who produce cobalamins, including vitamin B12. ncbi.nlm.nih.gov/pubmed/7354869
May
14
awarded  Nice Answer
May
8
comment Colored water uptake by plants [Rainbow Roses]
To answer your question it might help to know how you coloured the water as different types of color might be taken up differently.
Apr
16
comment Why is it harder to sequence plant genomes than animal genomes?
There are multiple problems. One already mentioned is polyploidy, another is the fact that plant cells have cell walls and it can be tricky to extract DNA without fragmenting it too much. Also, some plants have quite a lot of repetitive sequence which makes it harder to assemble. But as with every other organism it also depends on the plant, the variety, the technical possibilities one has and much more.
Apr
14
comment Why are people unable to develop lasting immunity against Norovirus?
I cannot answer this with anything but a guess, still: Some norovirus immunity seems to be caused by non-functional fucosyltransferase, which is (to keep it short) related to the ABH antigen. (see en.wikipedia.org/wiki/Norovirus) If (something similar to) a normal human antigen can confer immunity to norovirus, maybe the "real" norovirus antigen is so close to autoimmunity that our immune system filters a lot of them out.
Mar
23
comment Is there any way a human could whistle and be unable to speak?
You can make a whistling sound by pushing air through your teeth.
Mar
16
comment Is hands-only CPR as effective as traditional CPR?
I can get how "Stayin' Alive" will keep you in rhythm, but I am not sure if humming "Another One Bites The Dust" won't scare the daylights out of any bystander/helper who is not familiar with this exact recommendation.
Mar
4
comment Does DNA have the equivalent of IF-statements, WHILE loops, or function calls? How about GOTO?
I think with DNA we are closer to bits and bytes themselves or maybe machine code than to a programming language.
Feb
27
comment Common properties of herbs in creating anaphrodisiac effect?
I did not read all of it, but it looked to me like it mentioned at least some of the herbs and the chemicals you were asking for.
Feb
27
comment Common properties of herbs in creating anaphrodisiac effect?
This might answer part of your question: ncbi.nlm.nih.gov/pmc/articles/PMC3731873
Feb
18
revised What is biological dark matter?
added 476 characters in body
Feb
18
answered What is biological dark matter?
Feb
10
comment What is a group of tortoises called?
Maybe for the etymology part of the question, this related question on a related SE site could help: english.stackexchange.com/questions/21336/a-murder-of-crows
Feb
10
comment I photographed a couple of butterflies and birds in Argentina but can't identify them. What are my options?
To 1: I am not quite sure if this is a beetle. It could be a piece of banana that was stuck to the tree. possibly to attract birds. Something black is sticking out of it close to the "center". And the bird also has this "don't touch my food"-look.
Jan
21
comment Almost philosophical question about controlling a pest/plague
There are multiple things to consider. Eradicating a specific pest which we could have controlled might make it possible for another pest to take over the old ones ecological nice. Maybe that one than is not so easy to control or kill. But that is just one idea.
Jan
8
comment Is it possible to move your arms above your head when handcuffed in the back?
Contortionists do far more painful looking stuff, so I guess with the right training it could be possible.