Q. In human being, normally in which one of the following parts, does the sperm fertilize the ovum?
Answer: Fallopian
Notes: Fertilization in humans normally occurs in the ampulla of the fallopian tube (oviduct), where the sperm meets the ovum released from the ovary. The ovum is viable for approximately 24 hours post-ovulation, and sperm can survive up to 5 days in the female tract, enabling union here. The zygote then travels to the uterus for implantation. This is established human reproductive biology per standard medical texts like Gray's Anatomy and Williams Obstetrics. The cervix aids sperm transport; uterus hosts implantation, not fertilization.