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When humans or animals with similar genetic setups (like siblings) have children, there is an increased risk that otherwise hidden genetic defects will appear in the child that make it less fit to survive. This is called inbreeding and the effects of it can vary.
In Turkey there is a family called Ulas who suffer from inbreeding in such a way that they can't walk upright, they walk on all four instead (see related links below). This is a scary example, but a unique one.
The following can be very offensive for some people and is filled with controversy, researchers who has looked into this has often been called racists or worse. Still, inbreeding is a known problem and it doesn't disappear just by ignoring it:
In many cultures, especially Islamic ones (although this is not related to religion, only to the local cultures of those regions) it is common with cousin marriages. There it serves as a way to keep tribes and clans of people together and separated from each other, something that often leads to very strong loyalities to their families but weaker loyalities to their nations and long feuds with other clans. This form of cousin inbreeding has some illeffects on children compared to people who marry non-relatives. In Iraq (where about 50% of marriages are to cousins) babies suffer a 30% higher chance of dying during their first year1 and disabilities can be up to 2-3 times as common. These numbers are also true for immigrants concieving children outside their own countries, meaning that local situations are not a cause for these numbers.
1 http://www.isteve.com/cousin_marriage_conundrum.htm
Wiki User
∙ 12y ago
Wiki User
∙ 12y agoYou cannot marry your brother or sister; this is called "incest", and it is generally forbidden by law. You cannot marry people who are closely related to you.
In some jurisdictions, first cousins may marry; in most places, you have to be no more closely related than second cousin.
Wiki User
∙ 13y agoIf you marry your brother, you are engaging in incest. Such marriages are not legal.
Wiki User
∙ 13y agothey explode into a million pieces then reconstruct into a magical unicorn.
ps.lammaonmann.
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If you get married and then your sister gets married to your husband's brother is that legal?
Yes, it is legal for your sister to marry your husband's brother.
You know sonia and froy were married but are they brother and sister too?
No they ain't brother and sister
What relation to you is the daughter of the woman whose brother married your sister?
Your sister's husband is your brother-in-law. The daughter of his sister is his niece, and your sister's niece, but is not related to you. Assuming the child was born to the woman before she met your brother, the daughter of the woman whose brother married your sister is not related to you.
What relation is your fiance's sister to your brother and sister?
Your fiance's sister is not related to your brother or sister. However, once you are married and your fiance is your wife, she will be their sister-in-law and they will be her brother-in-law and sister-in-law.
Who is a man married to your sister?
Your brother-in-law.
What is the man married to your sister?
it is your brother in-law
Has a brother and sister ever got married?
No
Does Madison pettis have a sister?
Yupp she has a half brother and half sister which are married (well the brother) and moved out.
Your sister goes with your brother who is his sister to you?
If your sister goes with your brother then it's incest and they would both be your siblings. If a girl is dating your brother and they get married this would make her your sister-in-law.
Does Michelle phan have two sisters?
Michelle has a brother, a half sister, a step-sister, a step-brother, and a step-sister-in-law, and a sister in law. Her sister-in-law is Promise, who is married to her brother.
Can your brother-in-law marry you?
Your brother-in-law is not a blood relation, and neither is his brother. So yes, you could marry a brother-in-law's brother, if you wanted.My grandmother "R" married a man, "H"."H's" sister, "A", married my grandmother's brother, "L".So brother and sister in one family, married sister and brother of the other family. Love occurs in the strangest ways!
What relationship is your sister-in-law's husband if he is not your brother-in-law?
Your sister-in-law's husband is never your brother-in-law. He can be your brother, when your sister-in-law has that relationship to you because she is married to your brother. You could also have a sister-in-law who is the sister of your spouse. But then her husband is not related to you.
