What Is the Best Explanation for the Speciation Event That

question 27

Multiple Choice

What is the best explanation for the speciation event that produced the wild sunflower Helianthus anomalis?

• A)hybridization of two sunflower species where natural selection produced extensive genetic changes, but with no change in chromosome number
• B)hybridization of two sunflower species where natural selection produced extensive genetic changes with duplication of chromosomes
• C)hybridization followed by asexual reproduction
• D)gradual speciation that occurred over millions of years
• E)allopolyploid speciation

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