Final answer:
Ethnicity is primarily determined by biological characteristics such as genetic variations and physical traits. Scientific research in genetics helps understand ethnicity, while government decrees do not determine ethnicity.
Step-by-step explanation:
The ethnicity of an individual is primarily determined by biological characteristics such as genetic variations and physical traits. These characteristics are inherited from one's parents and ancestors, and they play a significant role in determining a person's facial features and other physical attributes. While geographical location and cultural traits can influence the prevalence of certain ethnicities in a particular region, they do not directly determine an individual's ethnicity.
Scientific research in the field of genetics has helped in understanding the complex nature of ethnicity and its biological underpinnings. By studying DNA variations and genetic markers, scientists can trace the ancestral origins of individuals and categorize them into different ethnic groups.
Government decrees, on the other hand, do not determine an individual's ethnicity. Ethnicity is a personal and biological characteristic that cannot be dictated or changed by government regulations or policies.
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