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.
Â­ Therapeutic cloning holds the most promise of valuable medical advancement. Therapeutic cloning is the process by which a person's DNA is used to grow an embryonic clone. However, instead of inserting this embryo into a surrogate mother, its cells are used to grow stem cells.