Genes and the environment both contribute to a person's characteristics. A person's characteristics are not solely determined by genes but the environment also has an impact on who someone becomes. Two examples discussed in class or the textbook that support this point are intelligence and obesity.
The development of intelligence is influenced by both genes and the environment. Studies have shown that the genetic influence on intelligence increases with age. However, the environment is also crucial in developing intelligence. Studies have also shown that children who are raised in a stimulating environment, which includes exposure to language, reading, and other educational materials, have higher intelligence scores than children who are raised in a less stimulating environment.
Obesity is another example of how genes and the environment interact. Some people are more likely to become obese due to their genes. However, the environment also plays a significant role in determining whether someone becomes obese. For example, if someone with a genetic predisposition to obesity lives in an environment with limited access to healthy food and opportunities for physical activity, they are more likely to become obese than someone with the same genetic predisposition who lives in an environment that promotes healthy eating and physical activity.
In conclusion, the interaction of genes and the environment is an essential aspect of understanding human characteristics. DNA is not destiny, and the environment plays a significant role in shaping who someone becomes.
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