More than 40% of the world's Catholics live in Latin America-but Africa has seen the biggest growth in Catholic congregations in recent years. Latin America accounts for 483 million Catholics, or 41.3% of the total Catholic population. Of the 10 countries in the world with the most Catholics, four are in Latin America.
DNA cloning is the process of making multiple, identical copies of a particular piece of DNA. In a typical DNA cloning procedure, the gene or other DNA fragment of interest (perhaps a gene for a medically important human protein) is first inserted into a circular piece of DNA called a plasmid.
A cloning vector is a small piece of DNA, taken from a virus, a plasmid, or the cell of a higher organism, that can be stably maintained in an organism, and into which a foreign DNA fragment can be inserted for cloning purposes.fter a DNA fragment has been cloned into a cloning vector, it may be further subcloned into another vector designed for more specific use. There are many types of cloning vectors, but the most commonly used ones are genetically engineered plasmids.