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This article shows about the genes, brains and behavior of humans. Its also shows the different of genes, brains and behavior between male and female. Genes are a particularly important part of understanding biological processes because they are directly associated with observable objects, outside chromosomes, whose influence on cell chemistry can be measured In some cases genes also be directly associated with differences clear to the naked eyes, like eye- colour itself. These some of evident show that chimpanzees and humans are distinct, despite sharing nearly all their genes. Men have a larges cerebrum than women. However, what are functionally relevant are differences in composition and wiring, some of these differences are very pronounced. Using brain mapping, that men have more than six times the amount of grey matter related to general intelligence than women, and women have nearly ten times the amount of white matter related to intelligence than men. Gray matter is used for information processing, while white matter consists of the connections between processing centers. Some behaviours are simple that biological explanation may be sufficient. Blinking, yawning and stretching are more reflexes than behaviors. However, etiquette and protocol are complicated behaviours, presumably influenced by many environmental factors, including social. I agree with this article because its tell us more detail about differences between man and women.zunaidi bin abd halim.blc2.1081546