[Campbell Biology P.557] According to the introductory text and Figure 24.3, what is the mai... | Practice Question

According to the introductory text and Figure 24.3, what is the main purpose or outcome of 'prezygotic barriers'?

  • A: To ensure hybrid sterility in offspring.
  • B: To prevent mating or hinder fertilization if mating does occur.
  • C: To promote gene flow between different species.
  • D: To create new hybrid species rapidly.

Explanation

The heading 'Prezygotic barriers impede mating or hinder fertilization if mating does occur' directly states their primary function. These barriers act before the formation of a zygote fertilized egg to prevent interspecies breeding.