| Thus major changes in body plan are possible over very short time intervals when homeotic, regulatory genes are involved. |
| The evolution of homeotic mutants, according to Simpson, still depended on selection acting on populations of individuals. |
| The homeotic gene antennapedia is transcribed in embryonic tissues that give rise to a thorax, complete with legs. |
| In these plants, some sepals showed homeotic transformations to carpels, becoming fused and presenting ovules and stigmatic papillae. |
| In the third whorl the stamens have petaloid cells on their filaments and no homeotic transformation is observed. |
| If a mutation occurs in the homeobox of any of the homeotic genes, an organism will not develop correctly. |
