Identical twins are a genetically-based phenomenon that is believed to occur at random, meaning that no one is directly responsible for them. Identical twins, or monozygotic twins, are caused when a fertilized egg splits in half, resulting in two separate embryos.
This occurs almost naturally and around the same time that other multiples, such as triplets or quads, are formed.
While identical twins have similar or even identical physical features, no one is responsible for these similarities since the split occurs pre-birth and is a result of genetics. No matter how closely related two individuals are, everyone’s genes are unique, meaning that physical characteristics, such as hair and eye color, are affected by random genetic mutations.
Even though identical twins share the exact same DNA, they will still differ subtly in their physical traits.
It is also believed that environmental factors can play a part in the formation of identical twins, such as the mother’s age and diet. For this reason, it is impossible to predict and pinpoint the exact cause of identical twins.
Who determines identical twins mother or father?
The parents of identical twins are determined by chance. It can be difficult to determine which parent contributes the genetic material for an identical twin. This is because identical twins have the same genetics, which means that the genetic material comes from one fertilized egg that then splits in two.
Generally, the genetic material comes from the mother, meaning that typically the mother is the biological parent of the identical twins. However, it is impossible to determine in any given situation which parent provided the genetic material for the twins.
Who carries the identical twin gene mom or dad?
The idea that identical twins must be hereditary is a common misconception. While it is true that identical twins run in families, it is not necessarily due to heredity from either the mother or the father.
Instead, identical twins occur when a single fertilized egg splits in two and then each develops into a full embryo. This split can happen at any point during the first eight days after the egg is fertilized in the womb.
As a result, any child can carry the gene for identical twins, regardless of their parents. However, genetics can play a role in the development of identical twins. For instance, the frequency of identical twins is known to increase in those with a family history of identical twins.
Additionally, some research suggests that mothers carrying identical twins are more likely pass on the twin gene than fathers. Ultimately, it’s impossible to predict whether someone will be able to pass the identical twin gene on to their children.
Which parent controls twins?
The answer to this question will depend on the type of twins and the parents in question. Generally, it is agreed that both parents have an equal say in terms of parenting and making decisions, regardless of the type of twins.
For fraternal twins, as they are two distinct individuals, both parents should have the same level of involvement in terms of parenting and decision-making. It’s important to ensure that each twin is treated fairly and not discriminated against due to their individual differences.
For identical twins, both parents should still be involved, but with a balance of independence and closeness in order to prevent feelings of suffocation or being overwhelmed. Identical twins often develop a strong bond during their early childhood, so it is important for both parents to recognize and nurture this connection.
At the end of the day, both parents should strive for a balance between maintaining control and fostering independence in the twins. Decisions regarding discipline, education, and lifestyle should be made in collaboration to ensure the twins’ safety and development.
The most important part is that both parents stay involved, supportive, and actively involved in the twins’ lives.
What causes identical twins?
Identical twins are caused when a single fertilized egg splits into two separate embryos soon after fertilization. This process is called monozygotic (or “MZ”) twinning. The result is two genetically identical individuals, each with their own placenta and amniotic sac shared.
Monozygotic twins are always of the same sex because they come from the same egg and share the same genetic codes. When the egg splits, the two resulting embryos develop into identical twins. During MZ twinning, the single fertilized egg divides into two genetically equivalent parts.
Because the two embryos come from the same egg, identical twins have the same chromosomal makeup and are often referred to as “identical.” As a result, identical twins share the same physical characteristics and possess many identical traits, such as eye color, hair color, and mannerisms.
Can a woman carry twins from different fathers?
Yes, it is possible for a woman to carry twins from different fathers. This is known as heteropaternal superfecundation, which occurs when two of a woman’s eggs are fertilized by sperm from different fathers during the same cycle.
It is a rare phenomenon, since only one sperm is typically capable of fertilizing an egg, and for a woman to have eggs from one cycle fertilized by two different males is an extremely rare occurrence.
However, recent studies suggest that the number of heteropaternal superfecundation cases may be more common than previously thought. In the most reported cases, the twins born were fraternal, rather than identical.
This means they have their own placenta and amniotic sac, as opposed to sharing one, which is the case with identical twins. Heteropaternal superfecundation is extremely difficult to prove scientifically since DNA testing of twins can only identify if it has occurred.
How do twins decide who is born first?
When it comes to how twins decide who is born first, it can be a complicated process. In most cases, it is determined by the positioning of the two babies in the womb. A baby will typically be born first if it is in a head-first position, or if it is closest to the mother’s cervix.
There can also be other factors that come into play, such as the size of the twins, the timeline of their growth and development, and the general health of the babies.
In some instances, a twin birth can be conducted through a special procedure called “fetal-rescue delivery”, where a doctor will take special precautions to ensure that the mother and both babies come through the process healthy.
This could involve cesarean section or an emergency delivery. In this case, the doctor may determine who is born first depending on the specific needs of each baby during the birth process.
Ultimately, deciding who is born first between twins is often a result of the positioning of the babies and the health of the mother and babies, but it can also be heavily influenced by medical interventions taken during delivery.
Is the first born twin dominant?
The answer to this question is not straightforward and requires a bit of explanation. Generally speaking, it is not true that first-born twins are always dominant over the second-born twin. In fact, it has been suggested that no one twin is necessarily dominant, and that the relationship between twins is more complex than a simple dominance hierarchy.
In some cases, the first-born twin may appear to be the dominant one in the family or in other social settings. This is because the first-born twin tends to be better developed, having the advantage of being created and nourished in the womb for a longer period of time.
There is also evidence that suggests that the first-born twin may develop a stronger bond with their mother and may be more secure in their relationships later in life than their second-born twin.
However, in terms of a twin relationship, the idea of “dominance” is almost irrelevant. All twins, regardless of birth order, form a unique bond with one another, and the interactions between them tend to be more subtle and complex than simply one being more dominant than the other.
Studies have actually shown that birth order has little to no impact on twins’ relationship, as both twins are likely to have equal influence on each other.
Ultimately, the answer to the question of whether the first born twin is always dominant is no. The relationship between twins is much more complex and nuanced than that. Birth order may influence some aspects of an individual’s behavior, but it is not likely to be the primary factor that determines the dynamics in a twin relationship.
Who is the elder one in twins?
It is impossible to say who is the elder one in twins with certainty. While it is true that identical twins share the same genes and very similar physical characteristics, the difference in age can range from a few minutes to several hours.
Generally, when twins are born, one might be smaller or appear more mature than the other. However, this is not always the case, and the smaller or more mature twin isn’t necessarily the elder one. The age difference depends on the time of conception and the delivery.
It can also depend on the rate of cell division, which determines which twin will be born first. While it is not always possible to determine definitively which of the twins is older, doctors may be able to make an educated guess based on the age difference of the two fetuses when they first appear in an ultrasound.
Which twin is usually bigger?
The answer is typically dependent on what type of twins you are referring to. For fraternal twins, they are no more likely to be the same size than any two random siblings – therefore, often one twin will be bigger than the other.
For identical twins, they are the same age, so typically one twin will be slightly bigger due to a difference in growth rate. That said, these differences tend to be quite subtle, so often it can be difficult to tell which of the two twins is bigger.
It is important to remember that all twins are unique, so there will always be exceptions and no definitive answer.
Can identical twins come from the father’s side?
Yes, it is possible for identical twins to come from the father’s side. While it is slightly less common for fraternal twins, or twins that come from two separate eggs, to come from the father’s side, it is possible for identical twins to result from one egg that is fertilized by one sperm and then splits in two.
This can happen naturally or through reproductive technologies like in vitro fertilization. In general, identical twins are the result of a single egg that splits into two separate embryos, meaning a father, no matter which side, will typically have a genetic role in the existence of identical twins.
Can the twin gene be passed on by the father?
Yes, a twin gene can be passed on by the father. The twin gene is a genetic factor that has been shown to increase the probability of conceiving fraternal (non-identical) twins. The gene is not solely carried by the mother; in fact, studies have shown that the gene is carried by roughly 6-12% of the human population and can be inherited from either parent.
It works by increasing the amount of follicle-stimulating hormone the body produces, which in turn can increase the chances of the ovaries releasing two eggs rather than one for fertilization. Even if the father does not possess the twin gene, certain lifestyle and dietary choices can increase the odds of having fraternal twins.
These include being over 30, having a high BMI, and consuming a diet high in calcium and animal proteins. All in all, the twin gene can certainly be passed from the father to the mother and increases the likelihood of having fraternal twins.
Which parent carries the gene for twins?
The exact answer to this question is not simple, as it depends on a number of factors. In general, the mother carries the gene for twins, as she provides the egg that can potentially divide and form two separate embryos.
The mother’s genetic makeup determines the likelihood of her releasing more than one egg during ovulation, which can lead to a twin or multiple pregnancy.
Additionally, the mother’s age, diet, health and lifestyle habits are all known to impact the chances of having twins. For example, women who are over the age of 35 and women who have had IVF treatment are more likely to have a twin pregnancy than women in their 20s or early 30s.
Ultimately, both parents can influence the chances of having twins, but the mother is the one who carries the gene that can ultimately cause a twin pregnancy.
Do identical twins skip a generation?
No, identical twins do not skip a generation, as they come from the same fertilized egg. Each identical twin starts out as a single fertilized egg that splits and then the two halves divide and replicate.
This occurs at the embryonic stage and before the egg implants in the womb, which is why identical twins share the same genetic makeup and look almost exactly the same. Some research has shown that sometimes one twin may be “older” than the other, but only by a few days.
This difference occurs during the fertilization process, rather than across generations.
What makes you more likely to have twins?
Having twins is a natural phenomenon which is most commonly thought to be a matter of chance. However, there are certain factors that can make someone more likely to have twins. These include having a family history of twins, being over the age of 35, being of African descent, and being overweight.
In terms of genetics, those who have a family history of twins are more likely to have twins themselves; specifically, if identical twins run in the family, then the chances of having twins increase.
Also, because a woman’s ova quality decreases with age, those who are over the age of 35 have a higher chance of releasing multiple ova which can be fertilized by separate sperms, thus resulting in fraternal twins.
In addition, women of African descent are more likely to have twins than those of other ethnicities—this is thought to be due to the high rate of fraternal twinning in the African population. Lastly, those who are overweight are more likely to release higher levels of a certain hormone, known as gonadotropin, which can help to release multiple ova.
All in all, having a family history of twins, being over the age of 35, being of African descent, and being overweight can all increase someone’s chances of having twins. However, it is important to note that there is no surefire way to guarantee twins and that the phenomenon is largely unpredictable.