Top new questions this week:
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Humans can tolerate a maximum pressure of 100atm, but it becomes uncomfortable above 30 atms. Deep divers usually wear protective equipment like goggles among other things and our eyes seem to be more …
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I am currently reading a textbook (Molecular Biology of the Cell, 6th ed), and this problem on p. 170 is driving me crazy. I read through the solution given in this book but I couldn’t understand it …
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Several texts indicate that ghrelin is secreted when the stomach is empty. However, some(not all) texts also indicate that ghrelin is secreted when blood sugar levels are low. Is the second statement …
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For horned animals, there are two common configurations of cranial horns. One long horn above the nose (Styracosaurus, Rhino). Two long horns above the eyes or forehead (Triceratops, cattle, African …
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I am reading Guyton and Hall, chapter 38, Pulmonary Ventilation. It states that the two main factors influencing lung compliance are 1) tissue elasticity 2) surface tension elastic force. An …
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I was wondering if it was possible to calculate the amount of product theoretically produced from in vivo (human) values to determine if that’s the only enzyme causing the increase in amount of …
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Question It is well established that Paramecium translate UAG and UAA mRNA codons to amino acid, although they are STOP codons …
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Greatest hits from previous weeks:
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I was wondering what exactly a coupled reaction is and why cells couple them. I read the wikipedia article as well as several others, such as life.illinois.edu but I still don’t get it. Could …
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I’m trying to get my head around factors which affect transpiration in leaves. For example, how would applying petroleum jelly to the surface of plant leaves affect their rate of transpiration? I …
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I’ve read many years ago in books, that the brain has no nerves on it, and if someone was touching your brain, you couldn’t feel a thing. Just two days before now, I had a very bad migraine, due to a …
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I have heard that offspring can’t grow taller than either of their parents but I’ve also heard that sometimes some gene activation can skip generations. Is it possible for a child to grow taller than …
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During DNA replication, RNA primase puts an RNA primer in the lagging strand. What is the function of this RNA primer? Why can’t the enzymes put DNA fragments directly?
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Why is the Krebs cycle considered a part of aerobic metabolism if molecular oxygen is not involved in any of the reactions in the cycle? I originally thought that Krebs cycle was aerobic metabolism …
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Most plants do not have centrioles, so what organelle enables them to multiply?
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Can you answer these questions?
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I was reading a paper titled “Tetrad analysis in plants and fungi finds large differences in gene conversion rates but no GC bias” (2018). According to this paper: “The between-species …
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I am currently looking into decellularization with sodium lauryl sulfate since it is effective and cheap. My goal is to break down the cells of a plant leaf and release the chloroplasts to be viewed …
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