What term is used for twins that originate from two different eggs fertilized by two different sperm?

The correct term for twins that originate from two different eggs fertilized by two different sperm is fraternal twins. This occurs when two separate eggs released during ovulation are fertilized independently, leading to the formation of two distinct embryos.

Fraternal twins are genetically similar to siblings, sharing about 50% of their DNA, much like any two non-twin siblings would. This means they can be of different genders and may or may not resemble each other physically.

In contrast, identical twins arise from one fertilized egg that splits into two embryos, leading to genetically identical individuals. Terms like "clone twins" or "cross twins" are not recognized categories in human twinning. Therefore, fraternal twins accurately reflects the phenomenon described in the question, emphasizing the genetic distinction between them.