extra facts
An average person has a 3.5 per 1000 (1 in 285) chance of having identical twins.
A fraternal twin has a 1 in 17 chance of having twins, but an identical twin does not increase your chance of having twins.
If your mother is a fraternal twin- you may have a higher chance of having twins than the average person. If it is your father then it doesn’t effect your chance.
If either of your parents are identical twins then your chances of having twins are equal to the average person.
Genetically, the children of both sets of parents would be siblings, when they are really cousins. They all have 50% of the same DNA.
Monochorionic twins are identical twins who share one placenta, this occurs in about 70% of identical twin pregnancies.
Sometimes suffer from birth weight differences, amniotic fluid problems, umbilical cord entanglement or compression, twin-to-twin transfusion syndrome, twin reversed arterial perfusion sequence, and increased risk of birth defects in each twin.
Dichorionic twins are identical twins who each have one placenta and one amniotic sac, this occurs in about 30% of identical twin pregnancies.
Fraternal twins will have two placentas and two amniotic sacs.
Birth defects and anomalies occur more in identical twin births than any other pregnancies.
A fraternal twin has a 1 in 17 chance of having twins, but an identical twin does not increase your chance of having twins.
If your mother is a fraternal twin- you may have a higher chance of having twins than the average person. If it is your father then it doesn’t effect your chance.
If either of your parents are identical twins then your chances of having twins are equal to the average person.
Genetically, the children of both sets of parents would be siblings, when they are really cousins. They all have 50% of the same DNA.
Monochorionic twins are identical twins who share one placenta, this occurs in about 70% of identical twin pregnancies.
Sometimes suffer from birth weight differences, amniotic fluid problems, umbilical cord entanglement or compression, twin-to-twin transfusion syndrome, twin reversed arterial perfusion sequence, and increased risk of birth defects in each twin.
Dichorionic twins are identical twins who each have one placenta and one amniotic sac, this occurs in about 30% of identical twin pregnancies.
Fraternal twins will have two placentas and two amniotic sacs.
Birth defects and anomalies occur more in identical twin births than any other pregnancies.