What is a Sister?


Traditionally, a sister refers to a woman who is closely related to another woman. This may be by blood, or it may be a non-familial relationship. A sister may be of the same race, or of the same religion. A sister may also be of the same profession. A sister may also be of the same country.

Biologically, a sister is a woman who shares the same biological or chromosomal line. The word sister is derived from Proto-Germanic *swestr-. It is a very old root, and is recognizable in almost every modern Indo-European language. In the US, the word sister is no longer used for biological sisters, but it is still used in a variety of other contexts. In modern English, it can be used in poetic usage, in feminist contexts, or in religious contexts.

Historically, a sister was a woman who lived in a community. She may or may not wear habits according to the rules of the community, but she generally served in health care, education, or other related institutions.

In science, a sister species is the ancestor of another species. It is also considered the most closely related to the given species. It is grouped together in cladistics classification systems. Depending on the classification, there may be several sister species in the same clade. Sister taxa are the taxa derived from a common ancestral node. The sister taxon is determined by tracing the branch back to its root. The deeper nodes represent the next common ancestor. The sister taxon is always the most closely related taxon to the taxon on the other side of the branch.

In biology, a sister chromatid is a pair of chromosomes that are identical in both sequence and content. They are created during the interphase of the cell cycle, before the cell divides. These chromosomes carry the same genetic material and are involved in genetic recombination. The sister chromatids are bound to the partner chromosome by a centromere. They then migrate to the center of the cell, where they will undergo mitosis and be replicated into two daughter cells. The sister chromatids are then separated in anaphase, and the daughter cells are made up of 46 chromosomes.

A sister species is a descendant species of a split species. Generally, sister species share the same ancestral species. In some cases, they may have different alleles of a common gene. The sister taxa are always grouped together in cladistics systems.

Sisters are usually cloistered, residing in a religious community or monastery, or living in a house. They take simple, perpetual vows, and they profess to live by evangelical counsels. They also engage in ministries that share the Gospel with others. They are typically called “apostolic.”

Biologically, a sister is one who is closely related to another woman. She may be of the same race, or of her own religion. In some cases, she may be of the same profession, or be a non-familial person. The sister may be the only person in her family, or she may have siblings. In the US, a man may legally marry more than one woman, but the law prohibits polygamy. Those who practice polygamy may be punished by fine or imprisonment.