Evan and Evelyn are twins but are not genetically identical.They are ________ twins.

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Dizygotic twins, also known as fraternal twins, develop when two separate eggs are fertilized by two separate sperm, resulting in two genetically unique individuals. This is the most likely scenario for twins who are not genetically identical. Gamete refers to the reproductive cells (sperm and egg) and zygote refers to the fertilized egg which ultimately develops into an embryo. Monozygotic twins, also known as identical twins, develop when a single fertilized egg splits into two separate embryos.

Evan and Evelyn Are Twins but Are Not Genetically Identical