What is a sympatric speciation mechanism that occurs in plants?
Answer and explanation
Correct answer: D. Polyploidy, a doubling of chromosome sets
- Step 1: Polyploidy is a doubling of chromosome sets.
- Step 2: Offspring cannot breed with the parent species, so a new species forms in the same area.
Answer
Polyploidy, a doubling of chromosome sets.
Why not the others: Geographical isolation by a mountain range: this is allopatric. Hybrid vigour: this is not a speciation mechanism. Migration to a new island: this is allopatric.
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