is being pregnant with twins genetic?
287134
Having identical twins is not genetic. On the other hand, fraternal twins can run in families. Genetics can definitely play a role in having fraternal twins. For example, a woman that has a sibling that is a fraternal twin is 2.5 times more likely to have twins than average!
1190260
['Heredity. A family history of multiple pregnancy raises the chances of having twins.', 'Older age. Women older than 30 have a greater chance of multiple conception. ... ', 'High parity. ... ', 'Race.']
524858
And while most women pregnant with twins or more will experience the same pregnancy symptoms as those pregnant with a singleton, they do often experience heightened pregnancy symptoms - severe nausea, extreme fatigue and fast weight gain - that may indicate that there are twins in their future.
1330630
If the twins are present on your husband's/partner's side, it won't influence your chances of having twins. Remember, the gene for hyperovulation is only a factor for the mother. If your mother (or your grandmother or aunt) was or had fraternal twins, you might have the gene.
873471
Fraternal and identical twins can be affected by pregnancy complications, and subsequent birth defects. One of the most common issues is that twins are very often delivered preterm, often due to premature rupture of the membranes.
570197
No pregnancy is entirely free of risks. But carrying twins can put you and your babies at increased risk for certain pregnancy-related complications, including premature birth and diabetes.
345522
Although environmental factors and the age of cows both affect twinning, multiple births are in large measure under the control of genes, according to Kirkpatrick. ... Cows that test positive for that DNA have about a 10 percent chance of producing twins at each birth.
756021
Twins can be different in appearance, having different skin colors, if they came from different eggs. When two eggs are fertilized by two different sperms, the babies will be fraternal twins and have different appearances, this is because they will have different DNA makeup and chromosomes.
964428
Non-identical twins tend to run in families. This is probably because of an inherited tendency to release more than one egg that then causes this type of twinning. So if you're female and non-identical twins run in your side of the family, you're more likely to have them yourself .
260389
Having identical twins is not genetic. On the other hand, fraternal twins can run in families. Genetics can definitely play a role in having fraternal twins. ... Fraternal twins happen when two eggs are simultaneously fertilized instead of just one.
1099910
Mirror image: Identical twins are believed to be genetically identical, but one twin can have mutations not shared by the other. Identical twins can be genetically different, which could explain why they do not always share disorders such as schizophrenia or autism, according to a study published in March in PLoS One.
57737
Twins can be either monozygotic ('identical'), meaning that they develop from one zygote, which splits and forms two embryos, or dizygotic ('non-identical' or 'fraternal'), meaning that each twin develops from a separate egg and each egg is fertilized by its own sperm cell.
863220
When both eggs are fertilized, the resulting siblings are fraternal twins. Because this gene can be passed on, the tendency to have fraternal twins can in fact run in families. Identical twins, on the other hand, result from one fertilized egg randomly splitting in two, creating two siblings with identical DNA.
444666
In fact, most women carrying twins, triplets or more will go on to have uneventful pregnancies and healthy babies. However, there are conditions that can arise in any pregnancy, such as anaemia, preeclampsia or gestational diabetes, which are more common in multiple pregnancies and are therefore worth watching out for.
841168
Among monozygotic twins, in extremely rare cases, twins have been born with different sexes (one male, one female). ... Another abnormality that can result in monozygotic twins of different sexes is if the egg is fertilized by a male sperm but during cell division only the X chromosome is duplicated.
243675
Yes! Identical twins came from the same sperm and egg, so they have the same chromosomes and genes. But there are environmental differences that can affect the way they look and behave. ... As identical twins get older they may look more and more different, because they are exposed to more diverse environments.
557061
Shiva Singh, molecular geneticist at The University of Western Ontario, have found that identical twins are not necessarily genetically identical. During normal reproductive development, a single cell forms by combining an egg, genetic material from the mother, and sperm, genetic material from the father.