Explain how a patrilineal family pattern worked

In patrilineal family systems children and wives take the father's surname.Sons inherit property from their fathers, but daughters, who are expected to marry outside the family, often inherit nothing. If male ancestors occupy positions of power or prestige, only sons may inherit those positions.

productive most commonly means: achieving or producing a significant amount or result.

explanation:

productive can also mean:

producing or giving rise torelating to or engaged in the production of goods, crops, or other commodities.

these depend on how the word productive is used. most likely productive will mean   achieving or producing a significant amount or result.