46 Cloning can help childless couples have children, and the child will have the DNA qualities of both parents
47 We can prevent endangered animals from extinction by cloning
48 Moreover, it can bring about the recreation of species that have disappeared
49 Many people believe cloning can be used to replace failing organs, and people will not worry about organ donations
50 Cloning is very helpful to genetic research because it helps genetic researchers have a better understanding of the structures of genes
