A-D) Representative pictures showing that pros NBs and GMCs are smaller than wildtype (NBs and GMCs are distinguished at telophase, as a doublet of unequal size), quantified in C (n=25,31,21,16). pros NBs exhibit similar nucleolus /nuclear ratio (white arrows, nucleolus marked by Fib) compared to wild type and pros;TorDN NBs, quantified in D (n=10,18,15). 