A family consisting of a mother, father, and their biological children is commonly referred to as a nuclear family.
The nuclear family is considered the traditional family structure in many cultures. It typically includes two parents and their offspring living together in one household. This definition contrasts with extended families, which may include additional relatives like grandparents, aunts, uncles, and cousins.
Nuclear families tend to be more prevalent in urban settings where families often move away from their extended relatives. This familial setup often emphasizes the emotional bonds between parents and children and can affect various aspects of socialization and development within the household.