The Pax6 gene is indeed a master control gene for eye development across various species, codes for a protein that regulates the expression of numerous other genes, mutations in it can lead to aniridia (absence of the iris) in humans, and it is homologous to the eyeless gene in Drosophila, demonstrating its critical role in eye development across different organisms.

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The Pax6 Gene

Question 31

Multiple Choice

The Pax6 gene

A) is a master control gene for eye development.
B) codes for a protein that controls the expression of many other genes.
C) mutant can cause aniridia in humans.
D) is a homolog to the eyeless gene in Drosophila.
E) All of the choices are correct.

Correct Answer: