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.
In December 1835, during Texasâ war for independence from Mexico, a group of Texan volunteer soldiers occupied the Alamo, a former Franciscan mission located near the present-day city of San Antonio.en years after Texas won its independence and shortly after it was annexed by the United States, U.S. soldiers revived the Remember the Alamo! battle cry while fighting against Mexican forces in the Mexican-American War of 1846-1848.