24-06-2005, 12:20 AM
Identical twins are formed when the original fertilised egg divides into two embryos and so two babies. These twins will have the same father and mother and are identical in every way, genetically speaking.
Fraternal twins happen when two separate eggs are fertilised inside the womb and grow separately. These twins, if fertilised at the same time (ie by the same father) will not have the same DNA, but are rather like any siblings, except they were conceived within the same cycle.
So it is possible, that if the woman has had to eggs during her cycle, and been playing the field, so to speak
, that each egg may have been fertilised separately, and they are then only half-brother or sisters 
And the mother has some explaining to do, 9 months down the line... :eek:
Fraternal twins happen when two separate eggs are fertilised inside the womb and grow separately. These twins, if fertilised at the same time (ie by the same father) will not have the same DNA, but are rather like any siblings, except they were conceived within the same cycle.
So it is possible, that if the woman has had to eggs during her cycle, and been playing the field, so to speak
, that each egg may have been fertilised separately, and they are then only half-brother or sisters And the mother has some explaining to do, 9 months down the line... :eek: