|Flat Head Syndrome|
|After the Birth|
|Cows Milk Allergy|
|Stillbirth And Neonatal Death|
|Food Glorious Food|
|Health and Illness|
|Money, Money, Money|
|Twins and Multiples|
|Hair and Beauty|
|8 Out Of 10 Mums Say|
There is evidence that non-identical (dizygotic) twins can run in families but having identical (monozygotic) twins is a spontaneous event not influenced by genetics.
Hyperovulation is the tendancy to release more than one egg during ovulation. If multiple eggs are released there is a chance that more than one egg will be fertilised resulting in non-identical twins/tripletss/quads etc...
Therefore if a woman carries a gene for hyperovulation she has an increased chance of conceiving multiples. This gene can be passed on through generations from mother to daughter. If a daughter inherits the hyperovulation gene, she too has a higher than normal chance of conceiving multiples.
In conclusion, twins can run in families but only on the maternal side and only non-identical twins.
If you ask parents to list the most frustrating discipline problems during early childhood, you would find that tantrums, fussing and whining appear on every list. All children master their own version of these behaviors and every parent has to deal with them!