What happens when a sperm meets an ovum? Fertilization occurs when a sperm cell successfully meets an egg cell in the fallopian tube. Once fertilization takes place, this newly fertilized cell is called a zygote. From here, the zygote will move down the fallopian tube and into the uterus. The zygote then burrows into the lining of the uterus (a process known as 'implantation').

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