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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Wikipedia claims that a horse's neck length is a third of the horse's body length but data on horse size rarely ever mentions horse body length... They mention body height only... Anyone knows the length? Ocrrectionn; Bravant heavy horse or Belgian heavy horse or bravant or belgian horse... Besides the Shire horse
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Reputation Points
- 2 replies
- 2.7k views
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my understanding of emphysema seems to be flawed. i thought it was because of the lung inflamation that microphages attack and invade the alveoli 100%.. but i am not 100% this is sure. can anyone give me some more details about this please.
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Reputation Points
- 1 reply
- 1.3k views
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i was wondering the wonder of the immune system and how all the things are kept in place so that we survive the infectious diseases, or that our children survive the infectious disease. we would have been dead had it not been for those antibiotic protein molecules which stop the bacteria from invading by various means. stoping them or destroying their walls. artificials antibiotics have helped mankind tremendously. how does this take place so unconciously. this question has fueled my curiousity.?
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Reputation Points
- 8 replies
- 2k views
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I would like to ask why is it that the skin tends to wrinkle when one goes or is in the water for a period of time? This has baffled me for a long time. My mum says it is because the skin becomes dehydrated.
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Reputation Points
- 7 replies
- 2.2k views
- 1 follower
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http://www.dinosaurc14ages.com/carbondating.htm Im not a yec and Im very skeptical of this claim. Can you help me on this?
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Reputation Points
- 5 replies
- 4.2k views
- 1 follower
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Hello, I need some tips on how to make a 6X SDS loading buffer for use in SDS PAGE. My biggest problem is getting the SDS into solution. Last time I made it, I heated the solution on the lowest possible setting on our stir/heating plate to get it into solution. Once the SDS appeared to be dissolved, I turned the heat off and added the DTT and bromophenol blue. While I was aliquotting the solution for storage, it almost seemed to be becoming more solid. Indeed, I just removed an aliquot from our -20C and it is impossible to pipette and seems to be more of a gel-like solid than a liquid. (Our 6X loading buffer has always been thick in the past, but not this thick). I …
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Reputation Points
- 1 reply
- 13.8k views
- 1 follower
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Hi folks I'm interest in genetics and biochemistry. I wanted to know if there is a genetic cause for my homosexuality. I founded this study: http://blog.23andme.com/wp-content/uploads/2012/11/Drabant-Poster-v7.pdf In this paper you can see that between 12% and 14 % of all men are gay. Well posted this paper in this chat: http://www.scienceforums.net/topic/67578-gay-gene/page-10 Now a person can't believe that male homosexuality is such common. But doesn't this paper clealy show us the statistical facts? I am sure these 13/14% tell us the truth. Well 23andme has 200'000 customer from USA and all over the world. The droped the prize of 290…
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Reputation Points
- 12 replies
- 3.9k views
- 3 followers
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Hello, all! I have recently developed an interest in biology, and I was wondering where I should begin. I have had some exposure to the basic concepts of the field, but what little I've learned has been forgotten in recent years. What books do you all recommend? Something appropriate for self-teaching would be ideal, but if I reach an impediment too great to be overcome alone, I can find help. Thanks in advance, guys (and gals)!
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Reputation Points
- 2 replies
- 1.1k views
- 1 follower
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The question is in the title. Just want to know.
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Reputation Points
- 1 reply
- 1.4k views
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So, I have a little experiment I want to work on, but I need to know one thing, do plants need oxygen in the environment to survive? I asked one of the botany instructors on campus, one semester she said they need some, the next she said they need none... now I don't know >.< So... do they need a little of oxygen or can I just take it all away from the air around them?
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Reputation Points
- 4 replies
- 2.9k views
- 4 followers
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Hello! I am currently preparing for the Biology Olympiad. Is there anyone who is also preparing for this exam?
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Reputation Points
- 0 replies
- 1.7k views
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Why am I able to control my blood pressure and pulse with what feels like a switch in the back of my brain? I am sure this sounds crazy but I made a video of me doing it before and after with a blood pressure machine. Another person I found who can do this has managed to get an EEG readout whilst doing it. Here is me "surging" its very odd http://www.youtube.com/watch?v=xt-YzMNPbKg
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Reputation Points
- 0 replies
- 1.2k views
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I just came back after seeing footage of baby aligators being born, and what did I see dragged along behind the baby gators when they left the eggs? A placenta. I didn't even know such a thing was possible. Are those really placentas attached to the baby aligators?
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Reputation Points
- 8 replies
- 5.2k views
- 1 follower
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Lucid dreaming is a technique by which we can control our dreams with practise and certain sound waves. I've tried it and have once succeeded in doing it. I've read that dreams just last for about 2 seconds and that it is made up by our sub conscious. If so, how can these people or even myself control these scenes and stuff that show up just for a couple of seconds? What is the science behind this? And does dreams have solid scientific base? Does anyone have a clear idea about this?
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Reputation Points
- 3 replies
- 1.9k views
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Hello everyone, Haemosiderin definition says that it is a pigment that occurs when there is a local or systemic excess of iron. Does that mean excess iron deposition can cause haemosiderin pigment, I mean you don't alway need macrophages to eat Hb and make it, just iron is enough. Thanks
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Reputation Points
- 1 reply
- 1k views
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Siddha practitioners are promoting a traditional and natural ready to prevent and treat dengue – herbal water. As dengue fever is caused by a viral infection, the medicinal drink can help in building immunity to prevent dengue. For patients affected with dengue, the medicinal drink can help by boosting the platelet count in the blood. the following are being used in making the herbal water. 1- leaf extract of papaya tree 2-leaf extract of Melia composita willd 3-boiled and filtered dry root of Andrographis paniculata This method is currently used by tamil nadu government (state government of India) in dengue elimination.
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Reputation Points
- 2 replies
- 4.1k views
- 2 followers
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When I search fo the body length of the Chaco golden knee, Brazilian Salmon Pink Bird-eating Tarantula and Goliath bird-eating spider all I find is the length of their lengths, their legspan... but no data on their body length... Could anyone help?
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- 0 replies
- 1k views
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In the mus genus... which is largest? And how large? anyone knows? (size in cm or inches, not weight in grams or the like)
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- 1.1k views
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What is the etymology of the subspecific epithet "cassiquiarensis"? What is the differences between the Saimiri boliviensis boliviensis and Saimiri boliviensis peruviensis? Besides the names Bolivian squirrel monkey and Peruvian squirrel monkey do they get any unique subspecific names? Maybe something realted to titi?
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Reputation Points
- 0 replies
- 1.6k views
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I cannot find the common name of the Peruvian night monkey (or Andean night monkey) or the etymology of its species epithet http://en.wikipedia.org/wiki/Peruvian_night_monkey
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Reputation Points
- 0 replies
- 1.6k views
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Hello! I recently spent several months volunteering in South America, and for a portion of that I was in the Amazon rainforest. One evening, whilst we were sitting around a single candle as it poured with rain outside, we noticed some odd behaviour - three large ants (two workers and one soldier) were running around and around the candle in very neat circles. We watched them do this unceasingly for at least an hour. Curious, I found that wherever I moved the candle they would follow it and continue then going in circles. It was only when I extinguished the candle at the end of the night that they stopped circling and went off in random directions. Can anyone expla…
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Reputation Points
- 5 replies
- 2k views
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I understand that stem cells have different degrees of cell potency... But I do not understand this; What is the name for an animal cell without any potency? I mean... What is the name for an animal cell that isnt a stem cell? There must be a name for that... I mean... they behave differently, they do not transform into new cells, they just continue as the cells they are and maybe split into more cells like the ones they are but their structure does not changes... So... Any answers please? Wikipedia doesn'ts gives all the answers!
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Reputation Points
- 5 replies
- 2.5k views
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I have a question about animal-derived laboratory reagents and products. I’m working in a strictly in-vitro lab that focuses mainly on western blots and flow cytometry. I was wondering the cost to animal life associated with these reagents. These include: FBS (fetal bovine serum) & BSA (bovine serum albumen): I figured these products are likely a byproduct of the slaughterhouse industry and therefore the animals are being slaughtered more for the meat than to get the blood to make these products. Am I right in thinking this? Primary & secondary antibodies (raised in mouse, rabbit, goat, etc.): From what I understand there are three main types with differin…
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Reputation Points
- 1 reply
- 1.2k views
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My toddler is obsessed with skeletons so when we past by a dead cat on the side of the road that seemed mostly decomposed and asked if he could have it I couldn't resist. It only had fur left but no real "meat" to it. I got gloves and pick up the head and brought it home. I have already peeled the fur from it. Now how do I sanitize it well enough for him to play with? I was thinking a bucket of strong bleach water fiollowed by air drying in the sun?! Any advice welcome!
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Reputation Points
- 9 replies
- 8.6k views
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Anyone knows?
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Reputation Points
- 4 replies
- 1.9k views
- 1 follower
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