Final answer:
The twins produced when two separate eggs are fertilized simultaneously in the same mother are known as dizygotic or fraternal twins, which are genetically distinct just like regular siblings.
Step-by-step explanation:
If both eggs are fertilized simultaneously in the same mother, the type of twins produced are called dizygotic or fraternal twins. In approximately 1 percent of ovulation cycles, a woman may release two eggs, and if both are fertilized by separate sperm, two zygotes are formed, leading to the development of fraternal twins. Unlike monozygotic or identical twins, which result from a single zygote splitting into two, dizygotic twins are no more identical than any other siblings since they are formed from two distinct eggs and sperm.