Homogamy Homogamy is the tendency for individuals to select mates from similar social backgrounds.
Endogamy Endogamy is the restriction of mate selection to people within the same group.
Exogamy Exogamy is the requirement that people select a mate outside certain groups
Monogamy Monogamy is a form of marriage in which one woman and one man are married only to each other.
Serial monogamy Serial monogamy is a form of marriage in which a person may have several spouses in his or her lifetime, but only one spouse at a time.
Plasmogamy Plasmogamy is the joining of two cells and the fusion of their protoplasts in the process of sexual reproduction.
Heterogamy Heterogamy is the conjugation of unlike gametes.
Karyogamy Karyogamy is the fusion of gametic nuclei, as in fertilization.
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