Which of the following processes or events is most likely to cause gene trees to not reflect the evolutionary history of a species?

Question

Quizplus · Accepted Answer

Gene duplication can lead to paralogous genes which can result in gene trees that do not reflect the true evolutionary history of a species. Gene duplication can create multiple copies of a gene that then diverge in function and sequence over time, leading to the creation of new genes that did not descend from a single common ancestor. This can cause confusion in gene tree reconstruction as the duplication event can result in the same gene being present in multiple locations in the tree.

Which of the Following Processes or Events Is Most Likely