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A color-blind man and a woman with normal vision whose father was color blind have a son. Color blindness, in this case, is caused by an X-linked recessive gene. If only the male offspring are considered, the probability that their son is color-blind is ____.
Nomadic Herders
People who move from one place to another with their livestock, searching for pasture and water, in a cyclical pattern.
Barrel Model
A conceptual model used in anthropology to understand societies by analyzing their economic, social, and ideological systems as interconnected layers.
Infrastructure
The fundamental physical and organizational structures needed for the operation of a society or enterprise, such as roads, bridges, and water supply.
Superstructure
In Marxist theory, the cultural, legal, political, and ideological systems and institutions that derive from and support the economic base of a society.
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