The vertebrate Pax-6 gene product (the PAX-6 protein) triggers a complex program of gene expression resulting in formation of the vertebrate eye, which has a single lens. The fly Pax-6 gene leads to formation of the compound fly eye. When scientists cloned a mouse Pax-6 gene and introduced it into a fly embryo, it led to formation of the compound eye of a fly. What did scientists induce from this?

the Pax-6 genes of flies and mice arose from an ancestral gene in a common ancestor

Explanation:

Based on the information provided within the question it can be said that from this scenario scientists were most likely able to induce that the Pax-6 genes of flies and mice arose from an ancestral gene in a common ancestor. This is mainly due to the fact that this process led to formation of the compound eye of a fly which demonstrates the connection.

the answer for this question would be d. glaciers

a symbiotic relationship with the mitochondria