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 the 19th century, the mission complex became known as the Alamo. The name may have been derived from the grove of nearby cottonwood trees, known in Spanish as alamo. Ã¡lamo, alternatively in, 1803 the abandoned compound was occupied by The Second Flying company Of San carlos De, parras Ãlamo alamo Ã¡lamo de Parras. in coahuilan the 19th century, the mission complex became known as the Alamo. The name may have been derived from the grove of nearby cottonwood trees, known in Spanish as alamo. Ã¡lamo, alternatively in, 1803 the abandoned compound was occupied by The Second Flying company Of San carlos De, parras Ãlamo alamo Ã¡lamo de Parras. in coahuila