All the research on the brain, most of it has been based on the idea of ​​intelligence. The relationship between genetics and a person's intelligence has been studied by looking at different parts of the brain (Plomin and Spinath). With new information emerging on the concept of intelligence, it was thought that approximately 60% of intelligence was genetic, while the remaining 40% was environmental (Plomin). In a study recently conducted by Stanford University, it was found that when a person with a high IQ marries a person with a high IQ, their children will tend to have higher IQ scores. The same goes for two parents with a low IQ, and this shows how different genes can play a role in our children's intelligence. To prove that genetics plays a role in a person's level of intelligence, many scientists have conducted experiments on twins. Because they have the same genetics, scientists will look at their intelligence levels to see how they are equal. In most cases, identical twins had about 86% similar IQs. (Adhikari) An example of the effect of genetics on intelligence is the Curie family. In our society, a person who receives a Nobel Prize can be considered intelligent and high achieving. Two scientists Marie and Pierre Curie were a couple and both won a Nobel Prize. Later, their daughter Irene Joliot Curie also won the Nobel Prize. The possibility of both parents and children winning a Nobel Prize is almost impossible. Marie won the Nobel Prize for the genetics that ran in the family, or for the way she was