Some groups of animals, predominantly those that are parthenogenetic, arose as a result of polyploidy. Proof of the role of polyploidy in evolution is given by the polyploid series, in which species of a single genus or family form a euploid series with increases in chromosome number that are multiples of the basic haploid number.
A Brief History of an Old Building: The Alamo The viceroy of Mexico authorized a mission in 1716, but it was not until 1744 that the first stones of the present Alamo were laid. Priests had the Catholic mission San Antonio de Valero built to use to convert the native Indians.he viceroy of Mexico authorized a mission in 1716, but it was not until 1744 that the first stones of the present Alamo were laid. Priests had the Catholic mission San Antonio de Valero built to use to convert the native Indians.
Alamo Mission in San Antonio. The Alamo Mission in San Antonio is commonly called The Alamo and was originally known as MisiÃ³n San Antonio de Valero. It was founded in the 18th century as a Roman Catholic mission and fortress compound, and today is part of the San Antonio Missions World Heritage Site in San Antonio, Texas, United States. It was the site of the Battle of the Alamo in 1836, and is now a museum in the Alamo Plaza Historic District.