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Jul
24
comment Importance of Biodegradation pathway over other pathways
Think about it - without degradation pathways, "garbage" would build up and eventually overwhelm the cell. See lysosomal storage disorders for real-life examples.
Jul
24
comment Neuroscience - emission of smells
Please read about odor (what smells are) and olfaction (how the body senses odors). Odors are volatile organic compounds sensed by specific receptors in the olfactory system. The human body has absolutely no way of detecting radio waves, and even if it did, radio waves cannot transmit chemicals, as they are composed of photons. The only way this could work is if a device was created that produced odors when it received certain signals, such as Smell-O-Vision.
Jul
22
comment Why does T-cell Cancer Therapy require a large tumor mutanome?
The article is also available on PubMedCentral.
Jul
20
comment Would a VR headset exacerbate myopia or could it be used to retrain the eyes?
Personal medical and health questions are off-topic for this site.
Jul
19
comment Name/Examples of Traits whose benefit is non-obvious and/or which evolve despite apparent mal-adaptivness?
Altruism is absolutely beneficial.
Jul
19
comment why do marine organisms orient with their bellies facing downwards?
Also, keep in mind that the "belly" can be defined as the part that's pointing downwards in a horizontally-oriented creature such as a fish.
Jul
18
comment How spermaceti makes a whale float
@bonCodigo could you please clarify? What body functions are you talking about?
Jul
18
comment How spermaceti makes a whale float
If you haven't already, try reading through this. It may help.
Jul
18
comment How spermaceti makes a whale float
@user4779 The plastic bag is irrelevant, it's just there as a container for the liquid wax. Assume it is infinitely thin and infinitely flexible, with zero effect on the overall process. Buoyancy in water is directly related to the weight of the water that is displaced by an object - if the object weighs less than the weight of the water it displaces, it will float. Remember Archimedes - he was getting into his bath, and his body displaced the water, causing it to overflow the tub. That's what made him run down the street naked yelling "Eureka!" (Greek for "I have found it!"). Supposedly.
Jul
18
comment How spermaceti makes a whale float
@user4779 here's a different example. Say I have an airtight plastic bag filled with warm liquid wax. I toss it in cold water and it floats, because it's less dense than the water it's displacing. However, if I leave it there and the wax solidifies, it will become more dense (same weight, smaller volume) and may become either neutrally bouyant or it will sink, depending on the exact density change. This is what the example in your book was trying to get at, but apparently facts got in the way...
Jul
18
comment How spermaceti makes a whale float
It's volume, not weight that matters. I assume the solid wax takes up less space, and is therefore less buoyant.
Jul
18
comment Is the discovery of dominant and recessive genes the only reason Mendel matters?
@Luaan there's also the suggestion that he may have "doctored" some of his data...
Jul
18
comment Phosphorylation capacity of an enzyme
(...) If you wish to post questions such as these, please put in what research you have done to solve the question yourself, what you think the answer is or is not, and how you came to that conclusion. If you're stuck at some part, state exactly where you're stuck, and what you've come up with so far.
Jul
18
comment Phosphorylation capacity of an enzyme
@Cankutçubuk please take the tour and read through the help center to understand how this and all Stack Exchange sites work. Voting is nothing personal, it merely reflects the quality of the question or answer being voted on. In this case, the question is not in line with our homework policy, which is slightly mis-named, as it not only applies to homework but to all trivial and/or un-researched questions, especially those (like this one) that look very much like homework or exam problems. (...)
Jul
18
comment Interpretation of qPCR results for low expression genes
No prob. Sometimes we get too caught up in all the technology in the lab and forget about the simple stuff...
Jul
18
comment Interpretation of qPCR results for low expression genes
@pMarkov you validate PCR product size by running regular old-fashioned PCR with your primer pair of interest, and run the reaction out on a gel with a ladder for reference.
Jul
18
comment Why doesn't Manipulated Virus for Cancer Cure Work
Retroviral or lentiviral insertion doesn't have to be random - you could load your viral particles with the components of the CRISPR system, assuming the fix you want to make is small. You could also try this method.
Jul
17
comment Why doesn't Manipulated Virus for Cancer Cure Work
@JacksonH google "viral gene therapy complications" and learn for yourself!
Jul
17
comment Why doesn't Manipulated Virus for Cancer Cure Work
I'd first suggest reading up on what cancer actually is - a collection of thousands (or more) mutations in a cell that leads to uncontrolled cell growth. Each tumor has different mutations, and would require multitudes of individually-engineered viruses to "fix" all of them, which in many cases literally can't be done anyway, as the genome is so unstable.
Jul
17
comment Why doesn't Manipulated Virus for Cancer Cure Work
It's called an oncolytic virus. Hint: in the future, avoid rambling and run-on sentences and parenthetical comments, and re-read your question before submitting it so it is coherent and understandable.