Genetics
DNA replication, Mendelian Genetics, mechanisms of gene expression, and related topics
1442 topics in this forum
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Hello everyone, I live in Canada and when i meet people they cant help but ask where i am from originally and i ask them to guess. Some of them think i look Chinese. I am happy with that. But the thing is when i ask a Chinese person the same question their answer is completely the opposite, they think i look European. I would like to see what you think because i am not sure what my ethnicity is. well the thing i know is that my ancestors moved and migrated from all around the world and there is no one place i can call home. a picture of me is attached. thanks in advance
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Reputation Points
- 12 replies
- 2.9k views
- 1 follower
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Hi there I'm new. I'm wondering if one could change one's blood type, maybe through gene-therapy or nanogene-therapy? I know it can be changed through a bone marrow transplant, but that's it. Beware that I know very little about Genetics and even less about Nanogenetics. Sorry if this is a waste of a thread or if I necro'd an old thread. Thanks for reading (^-^)
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- 4 replies
- 2k views
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Hi ! I'm a newbie to anthropology and genetics, but lately I've grown very interested in it, and might even go back to college and start majoring or minoring in it. Now, given some contradictory studies in the field of genetic/ancestry studies that I sometimes come across, I sometimes am left with more doubts than answers, concerning some of the key elements and findings in that field. I thought I'd politely ask if some of you could answer and clear up a few simple questions, ones that I've found all sorts of contradictory answers for in the past, and in other forums. 1) Do all Europeans and members of the "European diaspora (White Americans, White Canadians, White Aust…
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Reputation Points
- 8 replies
- 1.9k views
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I read that <1% of the human genome can't be mapped until we have special technology. What is this unmapped DNA? What do we need to map it? What is (the function of) ribosomal RNA? How did we finally map it? My bad for saying "DNA" instead of "genome" in the title. I have a very basic understand of the "shotgun approach."
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Reputation Points
- 6 replies
- 2k views
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In a post I made this statement and have forgotten where I read on it and would appreciate any help in proving my point. The poster I was adressing does not believe that if one's only purpose is to save a genetic line, that it is more advantagious to save a sibbling than a son. Greatest I am wrote: Your parents are a and b. You and your siblings are 1/2a and 1/2b Your children are ½ of 1/2a and 1/2b + ½ of your wife 1/2c + 1/2d ---- c and d coming from her parents. Note that your closest match is your siblings and not your children. His reply to me was------ "Please provide evidence because I believe you are completely making that up." To date …
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Reputation Points
- 6 replies
- 2.2k views
- 2 followers
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So I was reading over at Wikipedia about anorexia nervosa and seen something about epigenetics that had sparked my curiousity. http://en.wikipedia.org/wiki/Anoretic "epigenetics: Epigenetic mechanisms: are means by which genetic mutations are caused by environmental effects that alter gene expression via methods such as DNA methylation, these are independent of and do not alter the underlying DNA sequence. They are heritable, as was shown in the Överkalix study, but also may occur throughout the lifespan, and are potentially reversible. Dysregulation of dopaminergic neurotransmission and Atrial natriuretic peptide homeostasis resulting from epigenetic mechanisms h…
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Reputation Points
- 6 replies
- 1.7k views
- 1 follower
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???? also also another good question about sound is why are asian people usually better at identifying specific musical notes than other peoples. i know its related to pitch and that asian people seem to use pitch a lot more in their speech to stress different syllables
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Reputation Points
- 16 replies
- 5.8k views
- 1 follower
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If you shave your eyelashes does it grow back? Has anyone ever tried doing this as an April fool's joke to a friend? Is it a good joke to use do you think?
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- 4 replies
- 4k views
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Beware of the negative effect of inbreeding when you marry your cousin. Inbreeding could promote genetic diseases. It tends to increase homozygousity, and diseases carrying reccessive genes tend to express themselves more. Remember the lineage of Queen of England that suffered from Hemophilia. Other genetic disorders such as Down's Syndrome, Turner's Syndrome could spring up.
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Reputation Points
- 1 reply
- 1.5k views
- 2 followers
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Hi guys, I just wanted to ask a genetics question purely out of scientific curiosity. I bumped into a short video clip online showing what looked vaguely like a dead "Goat with a human face and 8 legs". Google it if you want to check it out. I won't post it here because it is a little freaky. Anyway, my question is: is this likely to be the result of a mutation or sex with a goat? I didn't think humans could interbreed with goats. LOL! OK, it wasn't exactly a successful breeding, but I didn't even think it would reach that stage. Cheers
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Reputation Points
- 4 replies
- 2k views
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Hi, Any help would be greatly appreciated: I am having some trouble with drawing the flow chart/genetic cross diagrams through generations (F1 to F3) as I do not know the zygosity of a transgene I am using (haven't developed a way to detect), would it be allowed to simply demonstrate this as: Transgene (not stating as het/homo) Instead of: Transgene/- (het) Transgene/Transgene (homo) -/- (WT) Also if I was to show a cross: (Gene = WT, gene-1 = mutant) Transgene/-; Gene/gene-1 X Transgene/-; Gene/gene-1 F1 Transgene/-; Gene/gene-1 + the other 8 outcomes Is it necessary to show every possible outcome from this especially wh…
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Reputation Points
- 2 replies
- 1.6k views
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Hi This is a beginner question. I'm interested in ADHD though the question is a general one. For example, the Cardiff genome study, found a genetic correlation to ADHD behaviours. But they also found that this genetic factor was equally present in boys and girls. Could there be a genetic factor for ADHD which boys carry more than girls? I understand that this may be the case if the genetic factor in question is on the X-chromosome. Is there any other case where this could be the case? Many thanks --Justin Wyllie
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Reputation Points
- 1 reply
- 1.4k views
- 1 follower
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I am using a plasma cell separation technique from a national company which uses CD138 magnetic beads which attach to the +CD138 plasma cells, and a magnet to separate them. I seem to be getting far less than the expected yield of cells. Does anyone else use this procedure that can give me some tips or have a different procedure that works well. Thanks.
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Reputation Points
- 0 replies
- 1.2k views
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We have our landscaping done once a week. This is taken 4-5 days after it was done last. I started thinking about why this could be that one stem has taken off so rapidly while the others are growing at a normal pace. It's not like it's getting more nutrient or sunlight (or is it?) If this is an obvious question, maybe a link to some hints? Thanks for reading!
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Reputation Points
- 2 replies
- 1.3k views
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Hi new to the forum one thing that I always wonder about is the exact definition of "Genome". What is the "Human Genome". If you sequence a woman from Norway she will not have the same genes as a Aborigine man in Australia. What parts count as the "Human genome" - or the genome of a bacteria- , when mutations are all over the place? Thanks for enlightening me!
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Reputation Points
- 3 replies
- 1.3k views
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I need to know what all creatures have no male or female gender. A unisex.
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Reputation Points
- 6 replies
- 1.6k views
- 1 follower
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Hi I am new, I just had a question on my mind, and after searching google for a while I couldn't find an answer. I was hoping someone on this forum might be able to help. edit: before you read, i dont mean this to be anti-religion or anti-science, i am not implying anything by my question! So, the question I have is about random mutation. I just don't really understand how a gene can randomly mutate and have new traits? or alleles? however it works?? so what has always bothered me is the idea that at one point in our history on earth there were lots of creatures, but none of them had bones. so what i dont get is how through natural selection and random mutation…
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Reputation Points
- 5 replies
- 2.2k views
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In general, a trait might be selected and sustained in a sub-population in the short term by environmental conditions, but over the long term there'll be a regression to genotypic mean when selection differential disappear, unless canalization. There's no reason to suppose that this doesn't apply also to at least some behavioral traits, and the epidemiology of conditions such as psychopathy and autism provide some evidence that this is the case (?). So culture can be affected by phenotypic expression of deviations from genotypic mean?
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Reputation Points
- 1 reply
- 1.1k views
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Hy Guys, My son looks exactly like my wifes brother! He is only 2 weeks old. The pictures of my wifes brother look exactly the same when he was 2 weeks old! I can't see a single difference! The think is that I hate him! I can't stop thinking about this as he has always been mummies little boy getting everything he asked for. He never talks to me and doesn't like me! Do you think that he will look like him when he gets older?! Is it genetically possible for my son to look exactly like his uncle? I wouldn't be surprised if he looked like a grandad but how can my girlfriend carry a genetic information of her brother? I am pretty pissed off that he hasn't got my looks…
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Reputation Points
- 19 replies
- 32.8k views
- 1 follower
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in the beginning there was RNA that self replicated it made bacteria bacteria was asexual AND IT WAS GOOD then came about a mutation!! it made sexual bacteria which raped everything AND IT WAS GOOD the there was a mutation!! and the precursor for the SRY region was made and it raped everything and it was not so good because as it raped everything it passed on the SRY precursor making MALE's which could not reproduce and only dragged down resources you would think they would die out wouldn’t you but no the persistent bastards raped everything even more and became the dominant form of reproduction and that is the history of mankind (well it is sort of…
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Reputation Points
- 47 replies
- 8k views
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since her childhood my cousin has been tortured by an embarrassing illness, extremely dry&peeling palms almost throughtout the year.(except the temperature is above 30 (°C) the condition can be less worse.) the symptons : extremely dryness, peeling off on plams; her face is dry & peels off too, especially in cool and cold days. only in very hot weather, the condition can get less worse. forget to mention, her heels are dry and peels off too. the hotter the weather the better for her illness. she is the only person who gets this annoying disease in our family, none of the medicine can cure her palm(doctors give her up). none of the handcream wo…
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Reputation Points
- 9 replies
- 1.9k views
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As long ashuman history, we humans have dreamt of increasing our life span toward apractical or otherwise goal of physical immortality. If we succeed, there are many pluses and negatives debated about. Scientist haveincreased the life span of a human cell, a worm, and rat for example. There does not seem to be any reason why we die as soon as we die, some postulate about a so-called death gene that might be switched off for example etc. I hope I have oosted this thread where it belongs, if not, moderator please move it! ?
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Reputation Points
- 30 replies
- 6.7k views
- 3 followers
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I'm bringing a question which arose on a different (non-science) forum. The question arose like this (paraphrasing): What do you all think?
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Reputation Points
- 53 replies
- 18.1k views
- 3 followers
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i once read an article in newspaper(sorry i cant provide the reference), it says when clasp your hands at will, finding your right thumb over your left thumb makes u feel more comfortable than your left hand thumb over your right hand thumb, it shows u are more likely to be a science student who is good at math,physics,chemistry and the like. if you find it is your right hand thumb under your left hand thumb, u are more likely to be an arts student who is not so good at math, physics and chemistry and the like. it is decided by gene. try and see. do it the way u feel more comfortable to clasp your hands.
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Reputation Points
- 14 replies
- 31.4k views
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Hi I am trying to understand twin studies and really coming up against a brick-wall, probably because of my lack of maths knowledge. In particular I am trying to understand how making the "random mating assumption" when it should not be made (i.e. for the trait being studied random mating does not hold) could effect a study. For example in an imaginary study: In the mz set lets say there is a concordance factor of 80%. In the dz set 40%. The random mating assumption has been made. However; in fact for this trait the random mating assumption should not have been made, it turns out, and in fact the dz group shared 75% of their genes not 50%. (This is an…
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Reputation Points
- 5 replies
- 1.6k views
- 1 follower
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