Breaking down the question
This note asks you to distinguish the two basic bonds from which every kinship system is built. Define each type, give examples, and bring out the contrast tightly.
How to approach it
Define consanguineous kin as ties of blood and affinal kin as ties of marriage. Illustrate each, then contrast their basis, origin and social function, ideally with an Indian reference.
Model answer
Kinship ties are conventionally classified into two kinds. Consanguineous kin are those related by blood, that is by descent from a common ancestor — parents and children, brothers and sisters, grandparents, uncles and aunts. The bond is given by birth and cannot be dissolved. Affinal kin are those related through marriage — the spouse and the spouse's relatives, such as father-in-law, brother-in-law and sister-in-law. This bond is created by the social act of marriage rather than by procreation.
The contrast is instructive. Consanguineous ties rest on the fact of shared blood and form the axis of descent, inheritance and the lineage; affinal ties rest on alliance and knit two descent groups together, sustaining exchange and reciprocity between families. Radcliffe-Brown treated both as the elementary building blocks of any kinship structure. In the Indian context Iravati Karve showed how regional kinship systems weight these bonds differently — northern India stressing consanguinity with exogamous, distant alliances, southern India permitting cross-cousin marriage that fuses affinal and consanguineous relations within the kin group. Our note on family and marriage in India develops these regional patterns.
Examiner's perspective
The examiner looks for exact definitions, correct examples of each, and a clear statement of the blood-versus-marriage contrast. A single Indian illustration, such as cross-cousin marriage merging the two categories in the south, lifts the note above a textbook answer.