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A North American nuclear family. For social conservatism in the United States and Canada, the idea that the nuclear family is traditional is a very important aspect, where family is seen as the primary unit of society. These movements oppose alternative family forms and social institutions that are seen by them to undermine parental authority.
Only in the 1950s did the myth of the happy, nuclear family as the correct family structure arise. [10] Family structure is changing drastically and there is a vast variety of different family structures: "The modern family is increasingly complex and has changed profoundly, with greater acceptance for unmarried cohabitation, divorce, single ...
In neolocal residence, newly formed couples form their own separate household units, and create what is considered a nuclear family. This contrasts with other forms of post-marital residence, such as patrilocal residence and matrilocal residence, in which the couple resides with or near the husband's family (patrilocal residence) or the wife's family (matrilocal residence).
The nuclear family consists of a mother, father, and the children. The two-parent nuclear family has become less prevalent, and pre-American and European family forms have become more common. [2] Beginning in the 1970s in the United States, the structure of the "traditional" nuclear American family began to change.
The nuclear envelope has many nuclear pores that allow materials to move between the cytosol and the nucleus. [4] Intermediate filament proteins called lamins form a structure called the nuclear lamina on the inner aspect of the inner nuclear membrane and give structural support to the nucleus. [4]
Lamins, also known as nuclear lamins are fibrous proteins in type V intermediate filaments, providing structural function and transcriptional regulation in the cell nucleus. Nuclear lamins interact with inner nuclear membrane proteins to form the nuclear lamina on the interior of the nuclear envelope .
The nuclear matrix is also believed to be contained in the nucleoplasm where it functions to maintain the size and shape of the nucleus, in a role similar to that of the cytoskeleton found in the cytoplasm. [10] However, the existence and the exact function of the nuclear matrix remain unclear and heavily debated.
Tumor cells often show an aberrant nuclear structure, which is used by pathologists in diagnostics. As changes in the nuclear envelope correspond to functional changes in the nucleus, morphological changes in the nucleus may be involved in carcinogenesis. The regulatory functions of inner nuclear membrane proteins strongly suggest this ...