Top new questions this week:
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I read in a Swedish newspaper advertisement some years ago that genetic intervention had been used to knock out part of the plant immunity defence. The potato’s own gene repair introduced variation in …
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I work as field biologist in Chilean System of Environmental Impact Assesment. Several reports made by colleagues use Shannon-Wiener index for characterizing the richness study area, with the …
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I am learning about glial cells of the central nervous system (CNS), and I know that the main types of glial cells in the CNS are astrocytes, oligodendrocytes, ependymal cells and microglial cells. I …
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When you run a gel electrophoresis, you add your gel and then submerge it in TAE or TBE buffer before you pipette your ladder, DNA, loading dye, etc. Why must the gel be submerged in buffer before you …
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I understand that at the molecular level a CRISPR mediated gene drive works by copying the altered gene (and the drive containing CAS enzyme, and guide RNA) into the other chromosome containing the …
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During the electron transfer chain in cellular respiration, the NADH turns into NAD+ while donating an electron. Those electrons pass through many enzymes and chemical reactions. One such chemical …
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I was thinking about how bees can produce honey and human can eat it. After that I came up with question. What are the smallest animal that can produce food for human?
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Greatest hits from previous weeks:
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There are a bunch of different alignment tools out there, and I don’t want to get bogged down in the maths behind them as this not only between software but varies from software version to version. …
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Which cells in a human have the longest lifespan? Which cell has the shortest lifespan?
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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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DNA replication goes in the 5′ to 3′ direction because DNA polymerase acts on the 3′-OH of the existing strand for adding free nucleotides. Is there any biochemical reason why all organisms evolved to …
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Today while cooking with potatoes when I cut open a potato(raw) which was looking perfect from the outside showed purple veins. I threw it in my kitchen garden but than I wondered what it could be …
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I’m sure many of you have experienced this – you scratch your back or brush your hand over your arm and find a ridiculously long thin white hair, sometimes as long as 3 or 4 inches. I know a few …
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Some vegans claim that humans are herbivores, not omnivores, and that we are not physiologically designed to eat meat (see here: www.peta.org/living/food/natural-human-diet/). “According to …
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Can you answer these questions?
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The most common image of the Long-finned pilot whale shows a bulbous head. Some may think this is merely an inflated melon: upload.wikimedia.org/wikipedia/commons/thumb/7/76/…
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When I got a meat thermometer a few years ago, I was startled at how low optimal cooking temperatures are for beef, less that 140 degrees Fahrenheit. Also, as a kid, I remember reading that the desert …
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