21.
In their book 'Symmetrical Family' Young and Willmott attempt to trace the development of the family from pre-industrial.

22.
Which one of the following correctly defines the concept of social structure?

24.
Match the following in the term of Features and Term:
List I (Features) List II (Term)
a. All descendants in one line of a particular person through a determinate number of generations 1. Lineage
b. All descendants through males of a single ancestor 2. Paternity confidence
c. All descendants through females of a single ancestor 3. Patri-lineage
d. A man's confidence in the patemity of his own children 4. Matri-lineage