PATHOLOGY

Detailed explanation-1: -Identical twins share all of their genes, while non-identical twins, just like non-twin siblings, share half of their genes. So, we can assume that any differences in traits between identical twins come from the environment, and not from differences in their genes.

Detailed explanation-2: -The causes of these differences were due to changes in the human epigenome, he realised. “Essentially, epigenetics is the mechanism by which environmental changes alter the behaviour of our genes, ‘’ he says.

Detailed explanation-3: -Twins share the same genes but their environments become more different as they age. This unique aspect of twins makes them an excellent model for understanding how genes and the environment contribute to certain traits, especially complex behaviors and diseases.

Detailed explanation-4: -Differences in epigenetic patterns in genetically identical individuals could be explained by the influence of both external and internal factors.

Detailed explanation-5: -Overall, genetics has more influence than parents do on shaping our personality. Molecular genetics is the study of which genes are associated with which personality traits. The largely unknown environmental influences, known as the nonshared environmental effects, have the largest impact on personality.