Final answer:
A kinship chart depicting one's alliances won't necessarily extend vertically as the relationships can be shown horizontally as well; it is false that alliances only extend vertically on such charts.
Step-by-step explanation:
The question asks if a kinship chart based on one's alliances will extend vertically and the answer is False. Kinship charts depict relationships including consanguineal (biological) and affinal (marriage or agreement) ties. While a consanguineal tie is shown by a single line that can extend both vertically and horizontally, only individuals on the same horizontal line are deemed to be in the same generation. The kinship chart includes a point of reference called EGO, which is the individual at the center of the kinship diagram, with relationships extending outwards.
Furthermore, kinship structure can vary significantly across cultures, with descent as a crucial factor determining kinship connections and social obligations across generations. Descent can be unilineal, ambilineal, or bilateral, influencing inheritance, alliance, and marriage rules among families. Therefore, the kinship chart can both reflect and influence social structures and family dynamics within a community or society.