Fig. 4. Mutations in the Drosophila lkb1 gene affect centrosome size during NB division. (A) Metaphases and telophases from wild-type and dlkb1³¹⁵/Df(3R)urd mutant brains stained for tubulin (green), DNA (blue) and Centrosomin (red). Note the differently sized and the equally sized centrosomes at the poles of wild-type and dlkb1 mutant cells, respectively. Scale bar: 5 µm. (B) Frequency of NBs displaying differently sized centrosomes in wild-type (wt), dlkb1³¹⁵/Df(3R)urd and pins^P62/pins^P62 brains.