Top new questions this week:
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I understand that different frequencies are detected in different positions along the cochlea. I’m also aware that the range of human hearing is roughly between 20 Hz and 20 kHz. However, looking at …
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I’ve been learning about protein crystallography, and how crystals are made. A lot of the crystallization processes involve gradually changing variables (protein concentration, pH, salt concentration,…
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A number of my students asked what happens to the sliding filaments when muscles relax. For example, in an individual sarcomere, do all myosin heads release all at once or one/few at a time? More …
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I understand the concepts of steps in Chip-seq up to DNA purification, but I don’t get how one can then amplify the purified DNA samples that are once bound to the proteins…. Since sequence-specific …
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Is there a way to linearize plasmids in a sequence-independent manner? The circular plasmid should be cut ideally only once. It does not matter where. But as soon as it is linearized, it should not be …
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I have come across the concept of genetic memory in two books I recently read: In the book ‘Call of the Wild’ by Jack London, a dog called Buck has memories of a primitive hairy man who presumably …
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Does anyone know the oligomeric state of the mature and functional lipoprotein lipL32 in Leptospira? It’s an outer membrane-bound protein. In its mature state, the signal peptide (residues 1-20) is …
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Greatest hits from previous weeks:
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Frequently, I see colors with a slightly different hue when looking through my eyes individually. The right eye is more red-tinted (‘warmer’ hued) and the left is typically more blue-tinted (‘cooler’ …
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In practice, when you have vasoconstriction of the glomerular capillaries and subsequently an increase in blood pressure, glomerular filtration rate increases. However, this seems counterintuitive to …
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Why don’t we breathe nitrogen while it makes most of the air? Why do we always tend to breathe oxygen, not hydrogen and nitrogen?
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It is possible to bend each finger without bending any other, except one for most people. It is more difficult for the ring finger, but when I try to bend my little finger independently my ring finger …
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When we have an external wound, blood generally tends to clot there, forming a layer of solid scab. Yesterday, while brushing my teeth, I somehow hurt my gums and it got all bloody. However, it did …
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What feature of rabies pathophysiology causes hydrophobia? Why is hydrophobia unique to this one particular type of viral infection?
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Can humans live without eating food, just by drinking water? How long can we survive just by drinking water everyday?
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Can you answer these questions?
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I want to understand the concept of fisherian runaway. Dawkins’ book tells about this, but it’s not clear enough. It can be seen that the essence of Fisher’s idea is that when a male peacock with a …
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I am studying the current system of division of plants. While studying Thallophytes, I came across some sources which said that Thallophytes consist of Fungi, Algae, and Lichens. Some others (…
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What is this black bug in my house. There is literally an infestation. They are everywhere. The size of a small tick. They fly and just keep coming. Im from pakistan, lahore. I’ve never seen these …
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