[Campbell Biology P.695] In angiosperms, double fertilization is a key event. What are the t... | Practice Question

In angiosperms, double fertilization is a key event. What are the two structures formed as a direct result of the two sperm nuclei discharging into the ovule?

  • A: Zygote and a seed
  • B: Embryo and a food supply
  • C: Zygote and endosperm
  • D: Pollen tube and generative cell

Explanation

Double fertilization involves two sperm nuclei. One sperm fertilizes the egg cell, forming a diploid zygote 2n . The other sperm fertilizes the central cell containing two polar nuclei , forming the triploid endosperm 3n , which serves as a food supply for the developing embryo.