How does the development of the hemoglobin gene family illustrate the process of genomic evolution?

• A. The hemoglobin gene family evolved through whole genome duplication.
• B. The hemoglobin gene family arose from gene duplication events, leading to specialized functions of different subunits.
• C. The hemoglobin gene family developed through point mutations in a single gene.
• D. The hemoglobin gene family is a result of transposon insertions.

Answer: (B)