Monozygotic twins, or identical twins, are siblings who are formed from a single fertilized egg that divides into two identical embryos during early development.
DNA is also known as the biological blueprint of life while DNA typing is also known by various names such as DNA Profiling, genotyping or identity testing.
Genetic polymorphism is the occurrence of different gene or DNA sequence forms in a population. It results from natural variation and mutations, creating genetic code differences.
According to Colin Renfrew, the application of molecular population genetics approaches to the study of human evolution is referred to as "archaeogenetics."