Final answer:
Fertilization commonly occurs in the ampulla section of the uterine tube, which is the middle region where the sperm and secondary oocyte meet.
Step-by-step explanation:
The segment of the uterine tube where fertilization commonly occurs is the ampulla. The uterine tubes, also known as fallopian tubes or oviducts, are divided into sections including the isthmus, infundibulum, and the ampulla. The ampulla is the middle region of the tube, and it is the location where the secondary oocyte meets the sperm and fertilization typically happens. This process involves the sperm traversing the cervix and uterus to reach the fallopian tube, where the fertilization of the egg occurs. The fertilized egg, now called an embryo, then travels towards the uterus.