There are many species of agave in Mexico, of which the blue agave - Agave tequilana weber azul - is the only one allowed for use in tequila production and also the only agave used to make our Volcanic Agave Nectar. Blue agave is considered to be the finest agave in the world.
Mosaic Down Syndrome occurs when you have some cells with the normal two copies of chromosome 21 and some cells with an extra copy of chromosome 21.When this occurs, there is a mixture of two types of cells.Mosaic Down Syndrome occurs in only 1-2 percent of people with Down Syndrome, and there is a wide range in the level of severity of the impairment.hen this occurs, there is a mixture of two types of cells. Mosaic Down Syndrome occurs in only 1-2 percent of people with Down Syndrome, and there is a wide range in the level of severity of the impairment.
1 Mosaic Trisomy 21 â This is a rare form (less than 2% of cases) of Down syndrome. 2  While similar to simple trisomy 21, the difference is that the extra chromosome 21 is present in some, but not all cells, of the individual. 3  This type of Down syndrome is caused by abnormal cell division after fertilization.own syndrome is the most common birth defect in the United States. It was first described in 1866 and is named after John Langdon Down, the doctor who first identified the syndrome. The cause of Down syndrome, also known as trisomy 21, was discovered in 1959.