Ice breakers can be used to create familiarity within the group and ease everyone into the group process. The desired end result is a more open discussion forum and pleasing environment within the group in which the group process can continue.
1 To form identical or monozygotic twins, one fertilised egg (ovum) splits and develops into two babies with exactly the same genetic information.  To form fraternal or dizygotic twins, two eggs (ova) are fertilised by two sperm and produce two genetically unique children.
The resulting egg/sperm combination can be male or female. The result is either two male twins, two female twins, or one male and one female. The genetic similarity between fraternal twins is the same as any two siblings (about 50 percent if they have the same mother and father). They may look alike, or not, just like any sisters and brothers.