The revertants Hall found fell into three different classes (I, II and III). Class III grew the fastest (wild type rate), Class II grew slower and class I grew the slowest. Full article >>>
making it unable to synthesize the amino acid histidine (His) from the ingredients in its culture medium. However, some types of mutations (including this one) can be reversed, a back mutation, with the gene regaining its function. These revertants ... Full article >>>
(Date:10/13/2008)...NATI When it comes to embryo formation in the low...y leads to enhanced developmental precision, accor... from Cincinnati Children,s Hospital Medical Cen... reproductive biology may seem insignificant, one ...s because the study provides new information about...
(Date:10/13/2008)...search may help reveal why different parts of the ...ple sclerosis (MS). According to a new study in mi...o a protein produced by invading T cells dictates ...mes under fire. The studyfrom researchers at the U...ore and Washington University in St. Louiswill be ...
(Date:10/12/2008)...ping up excess neurotrophic factor from neuronal s...mission to affect processes such as learning and m...vents of learning and memory are long-term potenti...f which affect neurons, ability to communicate wit...play a stronger electrical response to the same le...
(Date:10/12/2008)... release is also available in French . , Rese...n and GlaxoSmithKline Inc. have identified two gen...an astounding sevenfold increase the risk of male ...Oct. 12 in the journal Nature Genetics. , Abou...baldness by age 45. The condition,s social and eco...
...cies, a team of international scientists leaves to...scovered treasures in the Mountains of Southwest C... range. , "Expedition Everest: Mission Himalayas"...ne of the planet,s richest and most biologically d... month-long exploration in China where scientists,...
..., according to a new analysis of more than 400 yea...Salt and Verde river basins. , By using data from ...lude that water supply for those western rivers fl...ught. The study goes back almost 800 years in the ...tes of Arizona, Colorado, New Mexico, Utah and Wyo...
...he drug-discovery process, researchers at Renssela...o predict protein separation behavior directly fro...modeling approach may reduce the time it takes to ...ficant implications for an array of biotechnology ...ery, and proteomics, the study of protein structur...
...Agriculture (USDA) has positively identified the p...n from birds last week in Mongolia by field veteri...S). It is the first instance of this viral strain ... contact to domestic poultry or waterfowl. , Pre...populations in the south and north of the country,...