Human genetics is the branch of biology that focuses on the study of genes, inheritance, variation, and genetic traits in humans.

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It explores how traits are passed down from one generation to the next and how genetic variations contribute to differences among individuals.

In physical anthropology, human genetics plays a crucial role in understanding the biological diversity among human populations. By examining genetic data, researchers can trace ancestry, migration patterns, and genetic adaptations that have occurred over time. It helps in unraveling the evolutionary history of human populations, identifying similarities, differences, and adaptations to environmental factors.

This knowledge aids in comprehending the origins and development of human physical characteristics, susceptibility to diseases, and even the way populations respond to changes in their environment, contributing significantly to our understanding of human evolution and diversity.