[Campbell Biology P.343] After fertilization, the resulting offspring has a pair of homologo... | Practice Question

After fertilization, the resulting offspring has a pair of homologous chromosomes. Where do these two chromosomes come from?

  • A: Both chromosomes are from the egg.
  • B: Both chromosomes are from the sperm.
  • C: One chromosome is from the egg (maternal) and one is from the sperm (paternal).
  • D: They are newly created during the process of fertilization.

Explanation

The diagram clearly shows the egg and sperm, each containing a single set of chromosomes, fusing during fertilization. The resulting zygote has a maternal chromosome and a paternal chromosome, which form the homologous pair.