Question

What do HOX genes control?

Answer 1

the limb (or body part) formation during early embryogenesis (specifically when the head-tail axis have been developed).. It is highly conserved in organism with bilateral symmetry (bilateria) as opposed to radial symmetry (like jellyfish)

Explanation:

refer to this question.. there is more details.. https://socratic.org/questions/how-do-hox-genes-affect-evolution#284673