.... also makes it easier to ensure that organisms are homozygous for certain, desirable traits, rather than relying on just the phenotypes which may actually prove to be heterozygous and can, therefore, pass on the traits which were intended to be removed. Even the knowledge of a single gene can have a major impact. Just by locating a single pathogen-resistant trait or adding or deleting a single gene can vastly improve the overall quality and value of an organism. One extremely important aspect of DNA technology is what has been done to protect and organism from disease. In some p .....

.... thick concrete roof like butter and reaches and altitude of sixty meters. You can hear ripping, rending, wrenching, screeching, scraping, tearing sounds of a vast machine breaking apart. L. Ray Silver, a leading author who covered the disaster at Chernobyl, said that within the core, steam reacts with zirconium to produce that first explosive in nature’s arsenal, hydrogen. Near-molten fuel fragments shatter nearly incandescent graphite, torching chunks of it, exploding the hydrogen. The explosion breaks every pipe in the building rocking it with such power that the building is split .....

.... a very long time. Such a harmful substance is a great health concern and needs to be disposed of. Another problem is the energy it needs. It uses an element that is hard to find and which will eventually run out. Also, the reaction cannot be easily stopped and if it can't be stopped, a nuclear meltdown can occur. This is a serious environmental concern. Fusion is different. It is a process that combines two nuclei into one, releasing an amount of energy that is far greater than that of fission. In a common type of reaction, two isotopes of hydrogen, deuterium and tritium fuse together, .....

.... of a DNA molecule, a mRNA molecule is built. This is accomplished by an enzyme which travels along a portion of DNA between two exons and attaches the opposing base pairs to the backbone of the mRNA (a structure composed of phosphates and ribose). The nitrogen bases of this new molecule are identical to that of the opposite side of the original DNA molecule except that the thymine has been replaced with uracil. The formation of this molecule allows for the construction of proteins in the ribosome without risking the DNA in the cytoplasm. The mRNA travels through the cell to a ribosome. .....

.... destroyed by the illness. Dr. Sayer (Dr. Oliver Sacks in real life) discovers that certain vegetative patients reacted to outside stimuli, such as a pattern on a floor, a tossed ball, or a television with a maladjusted vertical hold. Finally, Dr. Sayer comes across Leonard as a middle-aged man, some thirty years after he was originally afflicted with the disease. After doing some tests, the doctor comes to realize that there is brain activity and convinces his colleagues that further tests should be considered. He theorizes that a newly developed drug, L-Dopa, developed for the treatment of P .....

.... stimuli in the extracellular environment. * Synapse terminals communicate information from the presynaptic cell to the posisynaptic cell. Structural Classification *Anaxonic neurons- have multiple processes and the axon is indistinguishable from the from the dendrites. They're fairly small. *Bipolar neurons- have two processes in which one is a dendrite, and the other an axon. The dendrite is distinguishable from it's extensive branching at it's distal end. it's less than 3Omm from tip to tip. *Unipolar neurons- have a continuous dendritic and axonal process, i .....

.... A pollutant on a population level can be either non-target or target. Target effects are those that can kill off the entire population. Non-target effects are those that effects a significant number of individuals and spreads over to other individuals, such is the case when crop dusters spread herbicides, insecticides. Next we look at population damage by a pollutant, which in turn has a detrimental effect on the ecosystem in several ways. First, by the killing of an entire population by a pollutant, it offsets the food chain and potentially kills off other species that depended on that org .....

.... because of the work they do. Many programmers are involved in updating, repairing, modifying and expanding existing programs. They are often grouped into two types. These two types are Applications programmers and Systems programmers. Applications programmers usually are oriented towards business, engineering, or science. They write software to handle specific jobs within an organization such as a program used in a place of business were a lot of inventory is being taken. They may also work alone to revise existing packaged software. Systems programmers, on the other hand, maint .....

.... le virus d'Ebole se trouve? Les scientists, est medcins, ne savons pas. Il croien que le virus est devenu d'une centre serveru animal, comme un chauff souris, un souris est probablement un singe. L'origine exacte, les emplacements et l'habitat normal du virus d'Ebole rest inconnus. Comment Est ce-que le virus nous tuer? Cette question est la plus populair est aussi le plus interesant. Tous les victims d'Ebola, mort a cause de hemorragique. Quand quelq'un contract le virus Ebola, ils restant vivent pour huit a seize jours. Pendant c'est jour, beaucoup chose ce passe entre la co .....

.... very large and costly hydroelectric installations could compete effectively, and that the federal government would have to assume a major share in their construction. Motivated by the search for the multiple use of water resources, including navigation, flood control, and irrigation, in addition to power production, the Tennessee Valley Authority, or TVA, started government participation in large-scale waterpower development in 1933. Most major installations depend on a large water-storage reservoir upstream of the dam where water flow can be controlled and a nearly constant water level ca .....