The Dlx/Hox Gene Control System Operates Across Many Phyla, Which

The Dlx/Hox gene control system operates across many phyla, which is strong evidence that it evolved a very long time ago.Which of the following is true concerning this relationship?

A) Hox activates Dlx.
B) Dlx came first due to multilimbed animals in the fossil record.
C) Hox came first due to legless animals in the fossil record.
D) It randomly affects the number of limbs within insects.
E) None of these are true.

Correct Answer:

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