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In this letter, the integrability aspects of a generalized Fisher type equation with modified diffusion in (1+1) and (2+1) dimensions are studied by carrying out a singularity structure and symmetry analysis. It is shown that the Painlevé property exists only for a special choice of the parameter (m=2). A Bäcklund transformation is shown to give rise to the linearizing transformation to the linear heat equation for this case (m=2). A Lie symmetry analysis also picks out the same case (m=2) asdoi:10.1088/0305-4470/34/49/101 fatcat:hmnmxbdn55awhlpuctynz5d6au