Polyploidy · Botany

Why is polyploidy important in plant evolution?

  1. It permanently and completely prevents all genetic variation in plants
  2. It makes plants completely unable to reproduce forever
  3. It can create reproductive isolation, aiding new species formation
  4. It eliminates the biological need for any chromosomes
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Correct answer: It can create reproductive isolation, aiding new species formation

Polyploidy can quickly create reproductive barriers between new polyploid individuals and their diploid ancestors. This makes it an important mechanism of speciation in plants.

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