Yes, there are third cousins. Third cousins are descended from two different lines that connect back to a common ancestor. Third cousins are related to each other by blood, but they are distant relatives since they have many generations between them and their common ancestor.
Third cousins usually share a great-great-grandparent, but in some cases could share as distant an ancestor as a great-great-great-grandparent. People can have multiple third cousins, as it all depends on how many lines of descendants connect to a particular ancestor.
For example, someone’s father and mother may each have a third cousin, and those two third cousins may be related to each other through the same ancestor.
Is it OK to marry a 3rd cousin?
Marrying a third cousin is a complicated question with no simple answer. While it is legal in some countries and states, it isn’t in others. In the United States, it is estimated that marriage to a third cousin is legal in at least 12 states, while in other countries such as India it is a common practice.
Some even argue that marrying a third cousin is actually beneficial as it increases the chances of genetically compatible children.
Generally speaking, marrying a third cousin is not seen as a very distant relationship so it is often accepted more than further levels of interbred marriage. In western society, there has been much less social stigma attached to marrying your third cousin as compared to marrying your first cousin.
Ultimately, each individual should decide whether or not they are comfortable with marrying their third cousin, considering the various factors including legality, health concerns, and social acceptance.
It is important to do your own research and carefully consider all of the risks and benefits before deciding what is right for you.
Is 3rd cousins blood related?
Yes, 3rd cousins are considered to be blood relatives. The technical term for the relationship is a “third-degree-cousin,” or sometimes “removed cousin.” This means that both people in the relationship are descended from the same great-grandparents.
Generally, 3rd cousins share a common ancestry and blood connection that is stronger than 2nd cousins or other more distant relatives. They are related in a way that is both tangible and hard to comprehend.
However, due to advances in medical technology, such as genetic testing, it is now possible to determine precisely how closely related two individuals are through their DNA.
How much DNA do 3rd cousins share?
The answer to this question depends on several factors such as the percentage of the genome shared between two individuals, as well as the probability of a genetic relationship between them. Generally speaking, 3rd cousins will share approximately 0.125% – 0.25% of their genome.
This is equivalent to approximately 500-1000 genetic variants, which may include some non-coding sections of the genome. It is important to note that the amount of DNA shared between two individuals can differ greatly if they are more or less distantly related.
For example, 4th cousins might share as little as 0.03% – 0.06% of their genome. Additionally, it is important to note that the amount of DNA shared diminishes with every consecutive generation, meaning that 4th cousins may each only share half of the amount of DNA as 3rd cousins.
Is it okay to have a baby with your third cousin?
The answer to this question is a matter of personal opinion. It is generally accepted that it is not considered “taboo” to marry someone who is a third cousin. However, there may be some risk associated with having a baby with a third cousin.
According to the National Society of Genetic Counselors, there is a slightly higher risk of having a child with a recessive disorder when two third cousins have a child together. This risk is equal to that of having a child with an unrelated partner who is both a carrier of a recessive disorder.
For certain ethnicities, such as those of Ashkenazi Jewish descent, this risk is higher, as they are more likely to be carriers of certain recessive genetic disorders. Therefore, it is advisable for both partners to undergo genetic counseling before making any decisions regarding having a baby with a third cousin.
Ultimately, it is a personal decision that should be discussed and weighed out between the couple and their physician.
Is marrying your third cousin inbreeding?
Marrying your third cousin is considered incestuous in many parts of the world, but not necessarily inbreeding. Generally, inbreeding is the mating of closely related individuals, such as siblings or parents and offspring, and marrying your third cousin is too distant of a relationship to be considered inbreeding.
While some may consider marrying a third cousin to be morally wrong or socially unacceptable, it is not in any way considered inbreeding. In fact, it is estimated that many people are unknowingly married to their third cousins, as it is estimated that everyone in the world is at least related to a third cousin.
How far away is your 3rd cousin?
The answer to this question depends on the relationship of your 3rd cousin to you. If your 3rd cousin is a direct descendant from your grandparent, then they would be the same distance away from you as any other relative who is descended from the same grandparent.
For example, if your grandparent is your mother’s father, then your 3rd cousin is descended from that grandparent, and is therefore as far away from you as any other relative on your mother’s side of the family would be.
However, if your 3rd cousin is descended from another grandparent, such as your father’s mother, then the distance between you and your 3rd cousin would be dependent on the amount of generations, or the degree of separation, between the two of you.
If, for example, your 3rd cousin is your mother’s mother’s father’s sister’s son, you would be four generations away, making your 3rd cousin four generations away from you (and four times removed).
The simplest way to determine how far away your 3rd cousin is from you is to look at the family tree and trace your relationship back to the common ancestor. This can help to give you an idea of how many generations or “times removed” you are from your 3rd cousin, and thus how far away they are from you.
Are you blood-related to your 4th cousin?
No, fourth cousins are not considered to be blood-related. Your fourth cousins are the great-great-great-grandchildren of your great-great-grandparents, so they are more distantly related than blood-relatives.
To be considered blood-related, you would need to be a first cousin, which is when your parents have the same grandparents. Even in this case, however, the relationship is still quite distant and not considered a close relation.
At what point are cousins not related?
Cousins are related by virtue of having at least one common ancestor, but the degree of “relatedness” between them can vary depending on how closely they are related to their common ancestor. Generally speaking, cousins are no longer considered related at the fifth cousin level or beyond.
Beyond this point, the common ancestor is so far removed, the family ties and connection are too distant to consider them as related.
Can 3rd cousins share no DNA?
Yes, it is possible for 3rd cousins to share no DNA. That being said, on average, two 3rd cousins will share around 0.1% of their DNA. This amount of DNA is too low for a strong link in an ancestry DNA test, so it will not be seen in the results of the test.
However, it is not impossible or unlikely for two 3rd cousins to share no DNA since the amount of DNA shared between them is already quite minimal.
Additionally, the amount of DNA shared between two 3rd cousins is likely to be much less if they have different ancestors that married into the same family generations ago. This occurs when two different family lines merge through marriage while still retaining the same surname.
In this situation, the amount of DNA shared between two 3rd cousins could be so low that it would not be visible in a DNA test.
Therefore, it is possible for two 3rd cousins to share no DNA, although it is not very common.
Is 2nd cousin considered blood?
Yes, a 2nd cousin is considered blood. A 2nd cousin is the child of your parent’s cousin, which makes you and your 2nd cousin sharing some of the same blood from a common ancestor. However, the amount of shared DNA between a 2nd cousin and their cousin is much less than the amount of DNA shared between first cousins.
Generally, it is estimated that 2nd cousins share around 12.5 percent of their DNA with each other.
How closely related are third cousins?
Third cousins are considered to be part of the extended family, since they are closely related but not immediate family. Third cousins are twice removed from a common ancestor, meaning that a person’s great-great-grandparents are the shared ancestor.
On average, third cousins share around 0.78 percent of their DNA, making them more distantly related than second cousins, while still being close enough to have a family connection. Third cousins usually have no shared upbringing and, depending on the family dynamics, may not even be aware of their connection.
In comparison to second cousins, third cousins are generally not close enough to share family traditions or meaningful experiences, making them a bit more distant.
Is it okay for 3rd cousins to have a baby?
Typically, it is not recommended to have a baby with a 3rd cousin, as there is a slightly higher risk of genetic disorders or birth defects. Even though the risks are small, especially compared to much closer relatives, it is important to consider the potential health risks to the baby and family that may be passed on through the shared genetic material.
Furthermore, the chance of having offspring with healthissues increases when close relatives procreate, and this is especially true for 3rd cousins.
Therefore, individuals considering having a baby with a 3rd cousin should speak with a genetic counselor first to discuss the associated risks and to develop a plan for how to minimize these risks. This is especially important if there is a known health issue or disorder within either one of their families such as a birth defect, mental illness, or any other chronic disease.
A certified genetic counselor can provide additional information, such as the frequency and severity of any potential genetic disorder, risks of congenital diseases, and the potential need for genetic testing for newborns.
Overall, it is not advised for 3rd cousins to have a baby due to the increased risk for genetic issues. However, it is important to speak with a genetic counselor to determine if any steps should be taken to minimize the risks and to ensure that the baby is born healthy and safe.
What would my 3rd cousins child be to me?
Your 3rd cousin’s child would be your 3rd cousin once removed. This means that you are both descended from the same set of great-great-grandparents, but you are one generation apart. Specifically, your 3rd cousin’s child is the child of your 3rd cousin, while you are the grandchild of that same set of great-great-grandparents.
This means that you are not directly related, but you are still considered family.
How many 4th cousins are there?
The answer to this question depends on how many of your ancestor’s descendants there are. If you have four living grandparents, then you would have 8 great-grandparents and then 16 great-great-grandparents and so on.
You would then think of each of these people having their own descendants and family trees. Your 4th cousins would be the descendants of these ancestors 8 generations removed from you—so if each of these 8 ancestors had 8 descendants each, then you would have 64 4th cousins.
However, in reality, the number of all your 4th cousins might be much higher, especially if your family tree has branched out to include more descendants in each generation.
