[Campbell Biology P.696] What are the direct products of the two fertilization events in ang... | Practice Question

What are the direct products of the two fertilization events in angiosperms, and what are their respective ploidy levels?

  • A: Zygote (diploid) and endosperm (diploid)
  • B: Zygote (diploid) and endosperm (triploid)
  • C: Embryo (diploid) and seed coat (diploid)
  • D: Embryo (haploid) and endosperm (triploid)

Explanation

One sperm fertilizes the egg, forming a diploid zygote. The other sperm fuses with the two nuclei in the large central cell of the female gametophyte, producing a triploid cell 3n which develops into the endosperm.