Public opposition to genetically modified organisms (GMOs) remains strong. By contrast, studies demonstrate again and again that GM crops make a valuable contribution to the development of a sustainable type of agriculture. The discrepancy between public opinion and the scientific evidence requires an explanation. We argue that intuitive expectations about the world render the human mind vulner...

High-grade astrocytoma remains a significant challenge to the clinician and researcher alike. Intense study of the molecular pathogenesis of these tumors has allowed identification of frequent genetic alterations and critical core pathways in this disease. The use of novel mouse genetic tools to study the consequence of specific mutations in brain has led to the development of multiple represen...

To examine the effects of dibutyl phthalate (DBP) on gonadal sex differentiation, genetically male tadpoles of Rana rugosa were exposed to dilute solutions of DBP at concentrations of 0.1, 1, or 10 microM during days 19-23 after fertilization, which is the critical period of gonadal sex differentiation in R. rugosa. Tadpoles were necropsied on day 40. The genetically male tadpoles were produced...

Destruction of the entire stroma in a tumor could provide a stringent test of the prospects for tumor eradication in a single treatment. This possibility was investigated by experimental immune destruction of the stroma in a mouse melanoma model. Melanomas were first produced by grafting skin from transgenic C57BL/6 females of high-melanoma suscep tibiity to low-susceptibility transgenic males ...

Destruction of the entire stroma in a tumor could provide a stringent test of the prospects for tumor eradication in a single treatment. This possibility was investigated by experimental immune destruction of the stroma in a mouse melanoma model. Melanomas were first produced by grafting skin from transgenic C57BL/6 females of high-melanoma susceptibility to low-susceptibility transgenic males ...

currently much debate, attention and concern surrounds the use of genetically modified plants or animals. but there has not been much concern about microorganisms, although we all are aware of the place of microorganisms in the circle of life, their abundance and diversity. there are many examples regarding the application of genetically engineered microorganisms (gems), however, like other hig...

Analysis of meiotic chromosomes from two human male translocation heterozygotes is reported. One had total sterility after maturation arrest and chain configurations at meiosis, and the second had a abnormal children who were presumed to be genetically unbalanced.

in recent decades, biotechnologists have striven to improve the quantity and quality of food supply. producing genetically modified (gm) foods is one of the main goals and many countries all over the world have approved the distribution and consumption of the labeled gm foods in their own regions. however, there are still few groups having concerns about allergenicity of gm foods. this review h...