nerfin-1 clones (green) generated in myc hypomorphic background (J-K) exhibited significantly reduced nucleolus/nuclear ratio, [nucleolus labelled with Fib (red)] and reduced clone size, quantified in L (n=34,27) and M (n= 106,75), and displayed an increased proportion of differentiated Elav+ neurons, and reduced proportion of Dpn+ NBs per clone, quantified in N (n=20,20,20,20). scale bar =10μm 