Answer:
The gametes from both parents will contribute to the unique set of traits in their offspring. Each parent produces haploid gametes (sperm or egg) through a process called meiosis. During meiosis, the genetic material is shuffled and randomly assorted, resulting in gametes with a unique combination of genes. When fertilization occurs, the resulting zygote will have a unique set of genetic material from both parents. Therefore, it is the combination of genetic material from both parents that leads to the uniqueness of their offspring's traits.
Explanation: Hope this helps! :)