Biology
Subforums
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Discussion of Darwin's theories, modes of natural selection, life form structures, and life off Earth
- 2.3k posts
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DNA replication, Mendelian Genetics, mechanisms of gene expression, and related topics
- 1.1k posts
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Population biology, group behaviour, ecological interactions, environmental and biotic concerns.
- 961 posts
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Discussion of protein structure, energetics, and molecular biology.
- 553 posts
2707 topics in this forum
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Hi there, I found this site after a rather fruitless Google search. Am wondering how long it will take for rotten eggs to explode in summer in Australia. A while back my chooks took to laying their eggs under the house. I blocked off access but there are a lot of eggs still under there. The house is much too low for me to get to the eggs, either to break them or to remove them. I will just have to remain patient. Every now and then one will explode and it is horrific. It has been months since I blocked off access and I am desperate to know how much longer we will have to endure these nasty exploding surprises. If it is going to continue until this time next yea…
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Reputation Points
- 21 replies
- 11.6k views
- 2 followers
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What are exactly the jobs of the outlet pipe, the displacement tanks, and the loose cover in the anaerobic digester? I pointed to them using the red color. http://www9.0zz0.com/2016/12/10/16/748494966.jpg
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Reputation Points
- 2 replies
- 1.6k views
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Heloo! I am performing a membrane integrity test on Staphylococcus aureus using a mixture of two fluorochromes: propidium iodide and acridine orange. The cells grow in a MHB medium, washed and resuspended in PBS pH-7,2. Acridine orange and propidium iodide were added to 100 µl aliquots of these cells, followed by incubation in the dark for 15 minutes. In the past this method worked, so the cells with damaged membrane were stained in red and the cells with intact membrane in green. In the past two months this double staining does not work anymore, and I do not know why?!!!! The cells are no longer staind in green. In the best case the cells …
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Reputation Points
- 0 replies
- 1.1k views
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What is the difference between dispersed-growth bacteria and attached-growth bacteria?
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Reputation Points
- 2 replies
- 1.5k views
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I'm super fascinated by the way that bonobos evolved compared to the way chimps did. Seeing as we share almost 99% of our DNA with bonobos too, I think it's valuable to consider what circumstances set them apart from violent chimps. Here's a link to my blog where I discuss these implications. Let me know your thoughts! link removed
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Reputation Points
- 2 replies
- 1.2k views
- 1 follower
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I am looking at this Wikipedia page of how fish communicate using electric field and it blows my mind. How exactly does the fish send and receive an electric field with their cells? https://www.scientificamerican.com/article/bacteria-can-convey-electrical-messages-the-same-way-neurons-do/ P.S. I'm studying this to program the nanomachine, actual programming method is still being thought up, it might has to be mechanical P.S. They didn't mention how the bacteria receive this electrical signal though = =
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Reputation Points
- 20 replies
- 2.8k views
- 2 followers
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Well, I'm currently exploring natural existence of organism in space. Since, if it can live in space, we can use its mechanisms to live in space, sounds pretty practical. I heard they discovered a dragon like creature, so here I post fishie. If you can cultivate fish in space, well just between earth and the sun, it can be pretty cool I didn't mean to double post, delete one for me thanks
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Reputation Points
- 3 replies
- 1.3k views
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A common theme in science fiction media is the idea of immortality - the inability to die. But, it is not as fantastical as it may seem. Even modern scientists predict that immortality will be possible for human within the next 30 years. Though it wouldn't be the first time something has been classified as "immortal." The process of aging is called senescence, where mental ability declines, physical strength deteriorates, and the immune system weakens, among many other effects. There is cellular senescence and organismal senescence, and cellular senescence is believe to precede organismal senescence. In cellular senescence, diploid cells (the ones that make up mos…
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Reputation Points
- 3 replies
- 2k views
- 1 follower
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A 3-D animation of the cell has been created here, by the Uni of Tenerife, and I wanted to share it. http://fablab.webs.ull.es/project/la-celula/ Note there is an English version
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Reputation Points
- 1 reply
- 1.2k views
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For example, if I have a group of bacteria and one of the bacteria grows and arm, I want to quickly update this bacteria's arm to all the other bacteria. One thing that I found which is possible to transfer genetic material is through bacterial conjugation which transfer genetic material in the form of plasmid. Theoretically I could produce plsmids for all the bacteria and have them update as a package, but that wouldn't be efficient enough would it. Is there a biological way to have a single bacteria updates its capabilities to all the other bacteria in a short amount of time?
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Reputation Points
- 5 replies
- 1.4k views
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What is the difference between anaerobic bacteria and aerobic bacteria whence the ability of decomposition of organic matters? Can anaerobic bacteria decompose something like straw?
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Reputation Points
- 4 replies
- 1.8k views
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So I've been thinking about cells and aging. And I hit upon a question. Let's I am examining the aging of two cells at my hand, one on my right hand, the other on my left hand. We agree that when we grow until adult hood, our cells stop dividing and being to age. But why do all the cells in our body age at the same rate? If the cell in my right hand is 30 years old, then the cell on my right hand should also be 30 years old. It is as though they are able to communicate and synchronize the aging rate with each other. It could also be that, I got two clocks all set at 8:00AM and alarm goes off at 5:00PM as the DNA unwinding and aging scenario if I imagine DNA to be like a c…
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Reputation Points
- 7 replies
- 1.6k views
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For a science experiment I am trying to measure the growth of algae grown in these test tubes. I have a spectrometer available and I have been told I can measure the growth of algae by using a spectrometer to help analyze the algae's density. However, I am unsure about the steps and what nm setting I should use. Can somebody please help?
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Reputation Points
- 1 reply
- 3.5k views
- 1 follower
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Is Oxygen the only thing we can breath that helps sustain our life?
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Reputation Points
- 8 replies
- 1.7k views
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If gay men have a woman's brain and all women are bisexual, then why aren't gay men bisexual like women?
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Reputation Points
- 7 replies
- 1.7k views
- 1 follower
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Can leukocytes extend their lifespans through consumption of bacteria in our blood? Or does it have a negligible impact on their lifespans?
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Reputation Points
- 1 reply
- 1.5k views
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We all now bacteria can be used to make certain food product, but what if we use the bacteria to make food such as carbohydrate, fruit, and milk? I got the idea from how bacteria produce insulin and through my previous understanding of the plant's Kreb cycle. All you need is Rubisco enzyme, ATP, and carbon dioxide. You might even be able to create meat protein but I haven't don research on that one. In the end, I believe bacteria can be used to create food products, got any suggestions? Thanks
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Reputation Points
- 21 replies
- 3.3k views
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Hi, please can anyone tell me what is the meaning of waste stabilization? I am doing a research about the anaerobic digestion of food waste and i don't know what that definition means. Note: i am just 16 years old because i know that someone may considers my question very easy to answer but i really need help. Thanks in advance!
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Reputation Points
- 3 replies
- 1.4k views
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The eggs which our chickens lay have shells of a colour which corresponds to their feather colouring. My wife argues that this is totally natural, but considering that she has almost zero knowledge of biology, and we do not have a statistically significant number of chickens (two, to be precise) I was wondering whether there is a known connection. In isolation, I would dismiss this as coincidence. But one oddity is that our resident lizards gallotia galloti are striking in that the males have large blue spots on the sides of their bodies (which are brighter in ultraviolet) and behold - their eggs have a couple of blue spots as well. Another coincidence?
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Reputation Points
- 4 replies
- 1.5k views
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As you can see in the pictures, Charles II of Spain was born as a child of relatives. Due to inbreeding depression,he had a lots of abnormalities. But was it just a mere coincidence that the recessive deleterious genes ended up in his bag, or it was inevitable for him to have good genes due to his hierarchy??? Images: https://postimg.org/gallery/1i5coszk4/
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Reputation Points
- 3 replies
- 1.3k views
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Hi guys I was wondering if any of you had a few suggestions for a good quality first microscope? I've got a £50 amazon voucher, but I don't mind putting a bit more of my own money towards it, but that's my rough price range. It's just for messing around with at home for fun and it might come in handy when I start a distance learning biology course in a couple of months, that sort of grade/spec is what I'm after. Thanks in advance. P.s sorry if this is the wrong forum, maybe science education would have been more appropriate.
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Reputation Points
- 5 replies
- 2.2k views
- 1 follower
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I'm not quite so sure what causes death of natural causes in humans but it seems that the heart, or diaphram, gives up. Could it be possible to remove the head of someone who just died, keep it alive with blood, an oxidation machine and a pump and attach each individual nerve to a board which converts the nerve signals to electricity to move a robotic body. Most importantly, is it possible to haphazardly connect each nerve and the person would learn to control their body like a baby does. (Ex. Nerve controlling arm get rerouted to leg) I was just curious
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Reputation Points
- 6 replies
- 1.8k views
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There is a man who was claimed to be 250 years old when he died. So doesn't this pretty much contradict what is being taught in biology if a man can be 250 years old? http://www.martialdevelopment.com/blog/li-ching-yuen-the-amazing-250-year-old-man/ http://mysteriousuniverse.org/2015/02/the-herbalist-who-lived-to-be-256-years-old-fact-or-fiction/
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Reputation Points
- 44 replies
- 7k views
- 3 followers
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I need to find permissible value of TBC is allowed in the cages or in the airspace of the nursery, where the experimental animals are kept. PLs help!
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Reputation Points
- 0 replies
- 891 views
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Is it possible to grow and use an optic nerve to transfer data to a computer?
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Reputation Points
- 1 reply
- 1.5k views
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