Final answer:
A kinship chart maps family members and primarily accounts for the biological lineage, however, it also represents cultural and social relationships within the family. Yet, kinship is not totally determined by biology, but largely by cultural and sociocultural factors which are also represented in a kinship chart.
Step-by-step explanation:
The use of a kinship chart to map connections of family members primarily accounts for the biological lineage of an individual. The chart, using a point of reference or EGO, helps to trace the linkages of blood relations or consanguineal ties which indicate a perceived biological connection. However, it's important to note that while it predominantly represents biological linkages, it also captures affinity ties which are relationships by marriage or mutual agreement. This makes it a useful tool for mapping both the biological connections and social networks within a family.
However, it should be noted that kinship is not totally a matter of biology. It is significantly defined by culture and involves social relationships. For instance, sociocultural constructs like adoption, are represented in kinship charts where individuals with no necessary genetic relationship to each other are considered both legally and culturally to be family.
Moreover, different types of kinship structures such as lineal kinship, bifurcate merging kinship, and generational kinship are indicated on these charts providing a broader view than just biological lineage. Hence, a kinship chart serves as a sociocultural map of an individual's family ties, shedding light on the interplay of culture and biology in the identification of kinship.