Word: dna
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...years ago. And while Darwin recognized that variation and heredity were the twin engines that made evolution possible, he didn't know what made them possible. It would take almost a century after the publication of On the Origin of Species for biologists to determine that the answer was DNA. (See the top 10 scientific discoveries...
...DNA is like a genetic cookbook, using four molecular "letters" to spell out recipes for everything from hormones to heart valves. Biologists today are reading the 3.5 billion letters in the human genome as well as the DNA from thousands of other species, and they've amassed vast databases of genetic information that they can rummage through to learn about how life evolved...
...with heart attacks. The information from O’Donnell’s previous research, as well as data from six other labs, was compiled into a set of 3,000 heart attack patients and 3,000 controls. Researchers performed a million tests on each patient’s DNA for a total of 6 billion tests, said O’Donnell. The study used a gene chip developed by Altshuler’s team that can screen simultaneously for single problematic genetic locations and deletions of large chunks of DNA. When the data was processed through the chip, researches...
...animal species apart from mice, animal reproduction experts like Lee and Kim Min Kyu at Chungnam National University see dogs as a great medical resource. "Dogs have similiar physiology and can communicate with humans,' explains Lee. He is currently working on producing a "transgenic" dog - or a dog whose DNA is manipulated to either delete or introduce new genes - to enable scientists to better understand the role of genes in certain diseases and fast track treatments and cures for diseases like diabetes and Alzheimers. But it won't be easy. "Dog reproductive physiology is so unique," explains Chungnam...
...well as a storage unit he had rented nearby. The FBI has been tightlipped about the reason for the search and haven't named Lewis in conjunction with the reopened investigation. Police still have some of the tainted Tylenol capsules from the original killings and are hopeful some DNA can be recovered from the pills for testing...