Artifact Highlights. 1  Harriet Tubman Hymn Book (1876) 2  Jim Crow Railroad car (1920) 3  Rosa Park's Dress (1955) 4  Chuck Berryâs Cadillac (1973) 5  Marian Anderson Ensembel (1939) 6  Tuskegee Airmen Trainer Plane, an open-cockpit PT-13 Stearman (1944)
Hypergamy (colloquially referred to as marrying up) is a term used in social science for the act or practice of a person marrying another of higher caste or social status than themselves. The antonym hypogamy refers to the inverse: marrying a person of lower social class or status.
z The fusion of similar gametes is called - Isogamy eg : Monocystis. z The individual that participate in conjugation are called - Conjugants. z During conjugation, fusion of pronuclei is followed by - Postconjugation fissions. z In protozoans, sexual reproduction takes place by - syngamy and conjugation.