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Aug
23
comment Geographic/ethnic distribution of Neanderthal DNA in modern humans
Here is a link to the full text of the final published article.
Aug
23
comment Is it possible to predict with near 100% certainty how good a person is in bed from observing their certain behaviours read details?
@AliceD I'm not on CogSci, so I don't know their exact acceptance criteria, which is why I emphasized researching whether the question would be on-topic before posting there. Thanks for the reference, though, I'll have to check out the site more thoroughly.
Aug
23
comment Why we do not get hurt from HCl secreted in the stomach?
@Ashwin.N no, that is incorrect. If you read the previous comments, you'd have seen that this has been disproved. Acid on its own does not cause ulcers - H. pylori does.
Aug
23
comment Why mitochondria and plastids are called semiautonomous cell organelles and not autonomous?
As mentioned in several other comments on your questions: Please use relevant titles. Do NOT put tags in the title.
Aug
22
comment Listing Cluster of Differentiation (CD) markers (immunology)
WYSIWYG is correct, and I would tend to agree with your personal preference - order the markers in the manner that makes the most sense, not necessarily in any numerical or positive/negative order.
Aug
22
comment Is it possible to predict with near 100% certainty how good a person is in bed from observing their certain behaviours read details?
I'm voting to close this question as off-topic because it is more about psychology than biology, and may be better suited for Cognitive Sciences. Please take their tour and read through their Help Center before asking to make sure it is on topic.
Aug
22
comment Cancer in myogenic heart cells?
@Pi5 just to let you know, the answer you marked as correct is, in fact, not. You can see my comment below it for more info.
Aug
22
comment Cancer in myogenic heart cells?
This doesn't really answer the question. Your second sentence is incorrect - cells do not have to be dividing to accumulate mutations. You then go on to say that this is your "opinion", which does not by any means constitute proof. The BMI part is irrelevant to the question - it's been well-established that excess weight can lead to all sorts of health risks, including cardiovascular disease and cancer of various body parts, but it has nothing to do with heart cancer. Please answer the question factually and support your reasoning with relevant citations from the scientific literature.
Aug
22
comment Arrangement of genes in chromosome
@Sarin I have never heard of anyone referring to genes as being "spiral". "Opaque" is also not a word often associated with genes.
Aug
22
comment Arrangement of genes in chromosome
Your answer could definitely be improved by linking to explanations (such as wikipedia) of the various terms used, such as RNA polymerase, gene transcription, and transcription complex. It's very useful for beginners who want to learn more.
Aug
22
comment why didn't natives of south america evolve darker skin?
This question really needs to be pruned down a lot. Focus on the core question (Why are indigenous people in South America not as dark as sub-Saharan Africans living at the same latitude, with the same intensity of sun exposure?) and get rid of all the fluff, background, and other unnecessary material.
Aug
22
comment why didn't natives of south america evolve darker skin?
Your paragraph about time of arrival should be expanded into a "real" answer (and the numbers verified), as this is most likely the exact reason that indigenous South Americans (and North Americans as well, really) are not darker than they are - they didn't arrive that long ago. Here is a good place to start.
Aug
21
comment What is the mechanism by which bactericides kill bacteria?
@Sparkler this question is far too broad. From What types of questions should I avoid asking? "If you can imagine an entire book that answers your question, you’re asking too much."
Aug
21
comment Why do feces vary so little in color?
The colors in feces can vary tremendously - the bilirubin answer posted below explains the brown tinge that's always present, but other colors can also be present, depending on the type of food and the presence of dyes or other chromagenic molecules.
Aug
20
comment How can we determine the polarity of fat molecules?
Please read our homework policy, then edit your question to include what you've learned so far, what your thinking is regarding the polarity of the different molecules, and where exactly you're stuck. We're not here to do your homework for you, but we are here to help you learn.
Aug
20
comment Why are diabetes patients usually overweight when they don't even use the glucose?
I'd recommend reading up on diabetes and insulin, along with the linked articles.
Aug
20
comment Jurkat single cell clonal expansion
Jurkats shouldn't be difficult to clonally expand. If you're having problems, get a fresh culture from ATCC. You really also should know what kind of vector you're using - if you don't know what your reagents are, there is no way to independently verify your results. Therefore, they are invalid.
Aug
14
comment Molecular graphics
I'd recommend it, as the MKL can offer quite significant improvement in some numerical calculations over standard math libraries, and since PyMOL is completely based on very computationally-intensive work (displaying molecules and proteins in 3D), I'd strongly suggest getting it. To install over your current version of numpy, just run pip install -U numpy-1.9.2+mkl-blah-blah-blah.whl. The -U flag means "upgrade".
Aug
14
comment Is sequencing error a function of the nucleotide being read?
In the future, we recommend linking to cited works via PubMed or DOI. Publisher's websites can (and do) change. Additionally, please double-check your links before posting. The link to the Metzker paper was broken.
Aug
13
comment Fruit-bearing tree identification
Telling us where on Earth you're located would be helpful...