The world's first wiki where authorship really matters (Nature Genetics, 2008). Due credit and reputation for authors. Imagine a global collaborative knowledge base for original thoughts. Search thousands of articles and collaborate with scientists around the globe.

wikigene or wiki gene protein drug chemical gene disease author authorship tracking collaborative publishing evolutionary knowledge reputation system wiki2.0 global collaboration genes proteins drugs chemicals diseases compound
Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 
 
 

Genetic changes in skin tumor progression: correlation between presence of a mutant ras gene and loss of heterozygosity on mouse chromosome 7.

Initiation of tumorigenesis in mouse skin can be accomplished by mutagenesis of the H-ras gene by treatment with chemical carcinogens. A mouse model system has been developed to study the additional genetic events that take place during tumor progression. Skin carcinomas were induced in F1 hybrid mice exhibiting restriction fragment length polymorphisms at multiple chromosomal loci. Analysis of loss of heterozygosity in such tumors showed that imbalance of alleles on mouse chromosome 7, on which the H-ras gene is located, occurs very frequently in skin carcinomas. The chromosomal alterations detected, which included both nondisjunction and mitotic recombination events, were only seen in tumors that have activated ras genes. We conclude that gross chromosomal alterations that elevate the copy number of mutant H-ras and/or lead to loss of normal H-ras are a consistent feature of mouse skin tumor development.[1]

References

 
WikiGenes - Universities