Gene duplication can occur for both protein-coding and regulatory regions of genes. In the figure below, imagine that the yellow gene and both enhancer regions in B are duplicated. Propose a mechanism for how subfunctionalization might occur. 
Definitions:
Fair Value Hedge
A risk management technique that uses financial instruments to mitigate the risk associated with changes in the fair value of an asset or liability.
Firm Commitment
An agreement between a buyer and an underwriter in which the underwriter guarantees the sale of a certain amount of securities.
Cash Flow Hedge
A hedging strategy used to manage risk associated with variability in cash flows, typically related to interest rates or currency exchange rates.
Inventory Purchase
The process of acquiring goods that a company will sell to customers or use in the production of goods to be sold.
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