From flies to humans-ancient gene may be involved in male infertility
...step in reproductive cell development, when a cell doubles its DNA and then divides twice, to produce the one share of chromosomes that will merge with the germ cell of the other sex. In merging, the germ cells thus create the full set of DNA of the new organism.) The researchers believe BOULE is the "fath...Researchers find first gene that increases risk of Crohn's disease
...ve the altered form of the gene. Having one copy doubles the risk of Crohn's disease. Having two copies increases the risk 15 to 20 fold. The discovery is a good example of the benefits to be expected from the completion of the Human Genome Project. Nuez, a specialist in programmed cell death, was initi...Amoebas use "midwives" to reproduce
...duce asexually. Reproduction occurs when an amoeba doubles its genetic material, creates two nuclei, and starts to change in shape, forming a narrow "waist" in its middle. This process usually continues until the final separation into two cells. However, Weizmann Institute scientists found that in one type o...Gene study to unlock causes of stroke
...ree relative who has had such a stroke, it roughly doubles your own risk," said Dr Koblar, Senior Lecturer in the Department of Medicine. "Studies of twins have shown that an identical twin whose sibling has suffered from a stroke has a three or four-fold increase in the risk of doing so," he said. "That su...New method for studying ocean currents to help fight erosion
...000 each, and installation doubles the cost. So an array of 30 sensors could cost as much as $1.2 million -- an amount beyond the reach of all but a few research programs worldwide, Lippmann said. He envisions the...Newly found bipedal reptile fossil predates dinosaurs by more than 60 million years
...ght lizard with forearms and a tail that more than doubles its body length, lived during the Permian period between 295 and 250 million years ago. Found in Germany in 1993, it is approximately 25 to 30 cm long and is preserved as a complete skeleton on a single slab of rock. According to Reisz, this animal -...UK study finds men also have a biological clock
...t will take more than 12 months to conceive nearly doubles from around 8% when the man is under 25 to around 15% when he is over 35. "It tells us that to some degree men as well as women have a biological clock that starts ticking as they get into their thirties and it also indicates that paternal age is a...Jurassic period mammal teeth found; prevailing theories challenged
...n theSept. 2 Nature. The finding more than doubles the age of the oldest known mammal fromMadagascar. Until now, terrestrial fossils were all but unknown from Madagascarfor this time interval. These small, furry creatures, the size of a house mouse, lived inMadagascar during the Middle Jurass......hnology, originally developedby Hoechst, more than doubles the cut resistance of the base polymer. Hoechst's North American industrial businesses have had a long-standingrelationship with Clemson through the support of the university1s engineeringand chemistry programs. These businesses are part of ...U-M and Israel launch major international cancer study
...worldwide carry a specific genetic alteration that doubles a person's risk ofdeveloping colon cancer. The frequency of this genetic change, called I1307K,is uncommon in Sephardic Jews and nearly non-existent in the Arabic populationof Israel. I1307K does not directly cause colon cancer, but increases suscep......e scenarios in which thepreindustrial level of CO2 doubles by the year 2065--considered amoderate projection by the Intergovernmental Panel on Climate Change, aninternational group of 2,500 scientists. As the gas builds up in theatmosphere, the tropical sea surface takes it up at a proportional rate.Scientis...