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Home > News > Tags > gene
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There is a sex ratio of about 1:1 in most species, including humans, meaning that an approximately equal number of males and females are produced. For the first time, geneticists at Emory University in Atlanta, Georgia, have discovered a genetic mechanism delivering this balanced ratio, at least valid for fruit flies... |
7 November 2007
06:42 GMT |
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A research published in the Proceedings of the National Academy of Sciences has found a gene that improves IQ in breastfed children. Having the FADS2 gene made children score, on average, 7 points more in IQ tests if they were breastfed. The study found breastfeeding had no effect on the IQ of children with a differe... |
6 November 2007
05:43 GMT |
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Being bald or boasting a "leonine mane", having straight or curled hair, blond or black… it's all in the genes. And while you're admiring the silky hair of the East Asian girls, you should know one fact: their hair fibers are 30% larger than those of Africans and 50% than those of the Europeans.A new resear... |
5 November 2007
05:37 GMT |
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Urinating countless times a day is one thing, but what follows after surgery is much worse: impotence. Operation of prostate cancer is in most cases connected to damage to the cavernous nerve, which means blood vessels necessary to induce an erection are blocked. Even nerve-sparing surgeries involve a long time recov... |
3 November 2007
08:41 GMT |
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You know the typical 'skunk' in each company. It can be big, hairy and very pleased at how people panic when they see him. He should know that it's not the mighty blubber-filled body that which makes an impression on them; they are rather looking for the gas mask. But don't blame him for that...as... |
2 November 2007
08:08 GMT |
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By creating a brain like a rainbow, scientists were able to study the brain's functions like never before. The "Brainbow", developed at Harvard University, is a genetic engineering that has inserted fluorescence genes from coral, jellyfish and bacteria, making mice brains shine in a curious array of colors betra... |
1 November 2007
06:40 GMT |
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There are increasingly more cases in which the inner sexual feelings do not match the external genitalia. And it's not merely about sexual orientation. There are also numerous cases of ambiguous genitalia in humans, about 1: 4500 births. New discoveries are again underlining the fact that men have an XY pair of ... |
29 October 2007
15:06 GMT |
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In some cases, you may use all the possible and impossible remedies, and waste a fortune because you don't want to be bald, but your capillary 'adornment' is doomed. In other cases, there might be some solution to your problem. That's why it is important to find the cause of your hair loss. 1. Mos... |
25 October 2007
14:06 GMT |
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For the Europeans, which are generally unaccustomed to seeing people of other races, Asians and Blacks look all the same at first. This is due to the fact that, amongst Europeans, there is a huge variation inside the same population when it comes to eye/hair/skin color, while they see just black haired brown eyed peo... |
24 October 2007
14:06 GMT |
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You may think that what you eat is your own choice. But a new research made at Kings College London proves that this choice depends on your genes. This was found after comparing the eating habits of thousands of pairs of twins. Identical twins presented a significantly higher share of food preference patterns, like a... |
23 October 2007
03:09 GMT |
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We know that testosterone makes men aggressive and muscular, while female hormones turn women into protecting "mothers" but also more vulnerable to addictions. But a new Yale research shows that it's not all about hormones; genes too are involved in shaping the sex-related behavior and the females' pronenes... |
22 October 2007
14:06 GMT |
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Is human homosexuality an immoral choice or a biological trait? A study, which is about to start soon, aims at solving this issue. It will be made on 1,000 pairs of gay brothers, being by far the largest research looking for "gay" genes. "If fresh evidence is found suggesting genes are involved, perhaps homosexuality... |
19 October 2007
14:06 GMT |
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You may be turned on by the image of Scarlet Johanson naked, but others have much weirder fantasies. The light of the silvery moon induces such an arousal amongst corals that soon the sea water gets flooded by coral eggs and sperms that turn the water milky. Those pervert astronomers...The connection between the moon... |
19 October 2007
06:53 GMT |
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When you call someone "a Neanderthal", you refer to that person as extremely rude and wild. But the more we investigate our extinct cousin, the more we find out about his complexity. A new genetic research even says they could have spoken in the same manner modern humans do. Since the first discovery of a Neanderthal... |
19 October 2007
03:11 GMT |
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To survive in an ever changing environment filled with new viruses and bacteria, organisms developed sex, a method through which species get enough variation to withstand these conditions. That's why researchers were puzzled how a microscopic organism, bdelloid rotifers, has survived for nearly 80 million years ... |
17 October 2007
06:27 GMT |
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In most other animal species, mating is not by far as pleasant as it is for humans. In our case, the sexual and reproductive behaviors are distinct, as sex has rather the role of bonding and forming social connections. But in some animal species, the male is 'dying' to have sex…literally! In praying mantis ... |
11 October 2007
04:57 GMT |
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People are said to be 'social monkeys' and loneliness inflicts severe effects on them. Far beyond what we've imagined, a new research shows that loneliness changes the expression of certain genes, so that chronically lonely people have less effective immune systems and are more exposed to infections. T... |
8 October 2007
08:38 GMT |
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Some play God and play it tough. The famous US scientist Craig Venter is going to create the first ever artificial life form. He has managed to build a synthetic chromosome employing chemicals obtained in the lab and the new achievement could lead to new energy sources to fight off the negative effects of global warm... |
8 October 2007
02:54 GMT |
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Plants can be compared to nice human bodies: their colors reflect the plant's health. A plant's main pigments are of two types: caretonoids, the 'precursors' of the vitamin A that give yellow-orange-red hues and anthocyanins that create blue-red hues. A new research has made a crucial advance in ... |
3 October 2007
05:41 GMT |
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Is he always looking for the worst, cheapest and dirtiest restaurant? Does he eat a lot only when he receives an invitation? The roses are always a little withered, aren't they? Don't put the blame on him, but on his genes. An international research team has found for the first time that genes influence the... |
2 October 2007
03:46 GMT |
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The first step towards suicidal is depression. Paradoxically, antidepressants can boost a suicide risk in some persons. Now it is believed that two genes linked to chemical signaling in the brain are possible culprits for this. Few years ago researches started to point that the antidepressant drugs rose the suicide r... |
1 October 2007
04:54 GMT |
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It is the scourge of the 21st century and for over two decades scientists have been looking for an AIDS vaccine. But the long battle experienced a severe blow last week when a long-waited trial of a new HIV vaccine was prematurely stopped after failing in inducing any stop or slow down of the infection. The STEP tria... |
27 September 2007
03:31 GMT |
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Hair loss is more than a physical issue. For many people, it is a great fatality that even changes their character. They turn more introverted, avoid relations with the others, get low self esteem, and even depression. Men will think that the others see them as being less attractive and sometimes even less virile (pa... |
26 September 2007
14:07 GMT |
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Amid the fierce debate if humans do synthesize and use pheromones or not, a new research made at Duke University Medical Center in Durham, N.C., and The Rockefeller University in New York City could have detected a gene encoding for one odor receptor (of over 400 smell receptors in humans) believed to be a pheromone ... |
24 September 2007
14:06 GMT |
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Some have it in their blood... jogging and running, I mean. Now scientists have also found why: because of a mutation that increases muscle endurance and which has become common in some human populations.The skeletal muscles contain two types of fibers (cells): fast fibers, which can burn sugars without oxygen (anaer... |
11 September 2007
06:28 GMT |
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What do Nicole Kidman, William Shakespeare, Christopher Columbus and Queen Elizabeth the First have in common? Their red hair.But recently, scientists have warned that redheads are turning increasingly rare and in just one century there will be no natural red haired human on the street. National Geographic magazine h... |
6 September 2007
16:11 GMT |
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You get fat just by drinking water. Hours of aerobics and unending diets and still…nothing. While some lucky bastards ingest tonnes of delicious and fattening food haunting your dreams, they still look so good in their forties. They and their children also. Now, scientists have found the "skinny" gene and even in a v... |
5 September 2007
04:50 GMT |
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Do funny dumb hair dues and wearing high heels make you look taller? Scientists have known for more than a century that this is hereditary. Common people have known it since ever.But now an international team at the Broad Institute of Harvard and MIT, Children's Hospital Boston, the University of Oxford and Peni... |
4 September 2007
07:34 GMT |
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Some men cut off their penises and balls to 'become' women. Some women shoot tones of testosterone into their veins to 'become' men. But a University of Adelaide team has found a method of getting a male mouse lacking the Y "masculinizing" chromosome by manipulating a single gene in the developing... |
20 August 2007
14:06 GMT |
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You think you are the only one to decide who you're spending your time with, but it seems this is far beyond your decisions. A new research made at Virginia Commonwealth University shows that as we develop, our company is increasingly determined by our genes. As we grow, our genes turn increasingly important in ... |
8 August 2007
03:14 GMT |
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Having sex with yourself is one thing, but some species manage to sexually reproduce in this manner, without the need for a partner. Now a team at the University of Nottingham investigated this amazing ability on a key fungus species, Aspergillus nidulans. This fungus has evolved in such a way that the same individua... |
6 August 2007
03:42 GMT |
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There is a tough war between sexes, which does not finish with the egg fertilization: both parents want to control their own the fetus' growth rate, even in the case of the nutrient-supplying mother that has a placenta and gives birth to live offspring. A team has discovered evidence of genetic weaponry and a ge... |
3 August 2007
07:18 GMT |
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As everything you do (from spitting to nose fishing) is genetically controlled, it is normal to think that left-handedness is also genetic. Now they have found its gene, named LRRTM1, which also presents an increased risk of being prone to some mental illnesses like schizophrenia."For right-handed people, the right s... |
2 August 2007
02:47 GMT |
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They have not created a 3-headed dragon yet, but by now scientists have managed to make a jellyfish with a dozen heads by carefully monkeying with a few genes. This experiment could explain how natural colonies of other multi-headed organisms first emerged, like that of the reef building corals. Researchers focused o... |
1 August 2007
03:15 GMT |
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We tend to consider us some helpless creatures. We do have weak muscles and lack fangs when compared to the apes and monkeys. But many ignore one issue: our ability of walking on land surpasses that of any primate: we can sustain a steady 20 km (12 mi) /h over long distances (it is, of course, a genetic ability devel... |
31 July 2007
06:16 GMT |
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As if rabbits reproducing like mad (from one female you can get 60 rabbits with all her descendants) weren't enough, China has now succeeded in producing the world's first cloned rabbit by employing a technology that takes cells from a fetus. "The female rabbit, which weighed 60 grams at birth in February, ... |
27 July 2007
03:32 GMT |
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The new workmate does not say "Hallo" on his/her first, second and third day at the office. You might say he/she is arrogant, shy or, in most cases, sociopath. But what if he/she cannot remember your face? This is really the case of prosopamnesia, a rare neural condition, detected so far in a handful of people around... |
26 July 2007
04:53 GMT |
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There are increasingly more cases in which the inner sexual feelings do not march the external sex. And it's not merely about homosexuals. There are also numerous cases of ambiguous genitalia in humans, about 1: 4500 births."It is usually the first question new parents are asked - is it a boy or a girl? But when... |
25 July 2007
14:36 GMT |
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If bonsai proved that the Japanese people can handle the art of "dwarfism", with Onagadori cocks they show how they can deal with gigantism, too. Onagadori ("Honourable Fowl" in Japanese) is a breed of domestic chicken and the cocks can have a tail reaching 10 m! This is an unchallengeable record amongst birds and pe... |
24 July 2007
14:46 GMT |
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Mushrooms are yummy but sometimes they can be more than that. That's why a team at the University of Warwick is co-ordinating a global effort to achieve the genome sequencing of the most important mushrooms for the westerners: button or common mushroom (Agaricus bisporus). Decoding the genetic make up of the mus... |
18 July 2007
04:14 GMT |
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In two centuries' time, the suicide blond will no longer exist. Scientists say that in 200 years the mix of races will make natural blond hair become a rarity. Researchers cited by the French publication "Le Monde" say that the number of natural blond people will decrease significantly in the following decades. ... |
17 July 2007
15:06 GMT |
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She may not go to the gym, but she has much more muscles than a long-trained body builder. In the end, whippets should be only lean muscle….well, not that much, anyway. Wendy's look differs a lot from the usual long, lean and sleek look of her counterparts. This female dog was born with a genetic impairment whic... |
16 July 2007
14:26 GMT |
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Biofilms are slimy layers of bacteria formed by large agglomerations of bacteria, many times of several species, kept together by adhesive molecules. They can appear almost anywhere, even on your teeth when you don't brush them for a day or two. They can be resistant to many types of antibiotics and when they f... |
10 July 2007
02:42 GMT |
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This is an extremely rare case: a 23-year-old woman has given birth to a four-legged baby girl at the Lebowakgomo Hospital in Polokwane (Limpopo, north of Pretoria). The little girl came into this world at 6.20am yesterday.Dr Elizabeth Reji, head of the neonatal unit at the hospital, said that during the initial mome... |
6 July 2007
14:11 GMT |
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After the mad cow, why not the demented pig? This is what Danish researchers at Institute of Human Genetics, Aarhus University, and University of Copenhagen, led by Associate Professor Arne Lund Jorgensen, are going to produce: the first pigs containing genes that trigger the Alzheimer's disease. The first clone... |
6 July 2007
06:33 GMT |
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You won't believe it, but our sperm cells travel up to 6 meters (20 ft) from the testes to the penis. This journey occurs mostly in the epididymis, a tightly coiled tube that enables the sperms to do what they have to do: fertilization. A team at the University of Illinois has found a gene crucial for the devel... |
5 July 2007
14:21 GMT |
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Geneticists seem determined to get the animal that would be the perfect pet while delivering us milk, wool, skin, meat, honey, silk and the perfect crop that will deliver us eatable fruits, seeds, tubers, roots, leaves, flowers and so on. Till then, Israeli scientists have genetically engineered tomatoes to which the... |
5 July 2007
05:40 GMT |
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After running through all options, in vitro fertilization (IVF) is the last stop. By then, most women are already around their 40's. But with the increasing age, the chances to give birth to malformed or genetically diseased babies are high. That's why many of these women undergo pre-implantation genetic ... |
5 July 2007
04:29 GMT |
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Any couch potato with high self-esteem will say his/her piggy shape is because he/she does not go to the gym. And the big muscles are just the result of hard effort and potentially everybody could display them if trained. Our body shape is the result of the combination of three tissues: muscular, bony and fatty. But ... |
4 July 2007
11:51 GMT |
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Take a look at Bruce Willis' case: how can the father be so hot and have a daughter who looks like a wack?But this does not apply only to humans. Genes that enhance the manhood in males are not necessarily a beneficial heredity for the daughters, too. At least in red deer (Cervus elaphus), the best hunks that wi... |
28 June 2007
04:09 GMT |
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