Answer
To prevent self-fertilization, plants have developed a method of testing the genetic compatibility of its embryos. Self-incompatibility is regulated by S locus genes, which will transcribe a protein tasked with interfering with the fertilization process if a plant's pollen reaches its own stigma.
Work Step by Step
To prevent self-fertilization, plants have developed a method of testing the genetic compatibility of its embryos. Self-incompatibility is regulated by S locus genes, which will transcribe a protein tasked with interfering with the fertilization process if a plant's pollen reaches its own stigma.