In looking at the location of Homeotic (Hox) genes Antp and Scr, it turns out that they are located next to each other. Why is it not surprising that the Antp gene and the Scr gene are located next to each other?

Because these Hox genes are controlled by the same enhancer and they are part of the same developmental program

Explanation:

The Hox genes are evolutionarily conserved transcription factors found in animals. These factors are critical transcriptional regulators and they are known to regulate developmental programs