Minor defects observed in <i>Atrx^Col2Cre</i> mice.

<p>(A) Pelvis phenotype of P21 control and <i>Atrx^Col2Cre</i> mice. Arrows indicate the site of delayed ossification in mutant mice. (B) Hind limb of mutant mouse with one additional digit, before and after skeletal preparation to stain for cartilage (blue) and bone (red). The additional digit is indicated by an arrow.