Astonished by the Unexpected Evolutionary Turn in Frog Sex Genes, Scientists
By McMaster University Unexpected genetic variety was revealed when McMaster University researchers found eight distinct sex chromosomes in 11 species of African clawed frogs. The study cast doubt on preconceived notions about the evolution of sex-determining genes by discovering these chromosomes in areas of the genome with substantial genetic recombination. This study demonstrates how newly created genes can quickly evolve important biological features like sexual differentiation. Diversity of Genes in African Clawed Frogs In the African clawed fr...