GEOLOGY AND MINERALOGY OF THE RADIOACTIVE QUATERNARY SEDIMENTS OF THE NORTH FAYIUM DEPRESSION, WESTERN DESERT, EGYPT

Geology and mineralogy of the radioactive Quaternary sediments of the North Fayium depression, Western Desert, Egypt

Quaternary sediments of the North Fayium depression, are mainly represented by residual soil and calcrete, and have been found to be anomalously radioactive.These sediments are deposited on the irregular surface of the carbonaceous shale of the middle member Micklem Competition Bridle of the Oligocene Qatrani Formation in the northern part of the F

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Both positive and negative selection pressures contribute to the polymorphism pattern of the duplicated human CYP21A2 gene.

The human steroid 21-hydroxylase gene (CYP21A2) participates in cortisol and aldosterone biosynthesis, and resides together with its paralogous (duplicated) pseudogene in a multiallelic copy number variation (CNV), called RCCX CNV.Concerted evolution caused by non-allelic gene conversion has been described in great ape CYP21 genes, and the same con

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