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.
Studies show that there is a genetic basis for fraternal twinning ;that is. non-identical twins do run in families. However. it is only the female that has any influence on the chances of having fraternal twins as the male cannot make her release more than one ovum.