[Campbell Biology P.707] Compare the genetic variation found in spores produced through the ... | Practice Question

Compare the genetic variation found in spores produced through the sexual and asexual portions of the fungal life cycle. Which statement accurately describes the differences and their underlying reasons?

  • A: Sexual reproduction produces genetically identical spores due to meiosis, while asexual reproduction produces genetically diverse spores via mitosis.
  • B: Asexual reproduction produces genetically identical spores via mitosis, while sexual reproduction produces genetically diverse spores through processes like karyogamy and meiosis.
  • C: Both sexual and asexual reproduction produce genetically diverse spores because both involve the fusion of different mycelia.
  • D: Spores from sexual reproduction are always diploid, leading to more variation, while asexual spores are haploid and less varied.

Explanation

Asexual reproduction in fungi typically involves mitosis, leading to the production of genetically identical spores. Sexual reproduction, on the other hand, involves the fusion of cytoplasm plasmogamy and then nuclei karyogamy , followed by meiosis, which shuffles genetic material and produces genetically diverse haploid spores. This genetic diversity is a key advantage of sexual reproduction.