Studies of ________ twins, that is, those which develop from the same egg and carry virtually the same genetic material, tend to support the notion that criminal tendencies are inherited.

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Monozyotic twins are identical twins who develop from a single fertilized egg and therefore carry almost identical genetic material. As they share the same genes and environment, studies have shown that they are more likely to exhibit similar criminal tendencies, supporting the argument that criminal behavior may have a genetic component. Schizoid and born criminal are controversial and outdated theories that do not have significant evidence to support them. Dizygotic twins, on the other hand, develop from two separate eggs and are no more genetically similar than any other siblings. Adopted twins may share environments but not genes, making it difficult to assess genetic influences on criminal behavior.

Studies of ________ Twins, That Is, Those Which Develop from the Same