arabianprincess
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well as my bro/ sis answered .......... its not suppose. .. if u want.. // peace
Sister Skye has hinted at the scientific reasons for why marrying cousins is not a good idea. My profession is a cotton breeder and Masha'Allah I am somewhat knowledgeable about Mendelian genetics. I have worked out the probability of a child expressing a genetic defect (mm) carried by only one of their grandparents in heterozygous condition (Mm) while all the other grandparents and parents had the normal compliment (MM).
^^ I agree. If it has been made permissible for us, I don't see the problem. And everything is in the hands of Allah Ta'ala. If He wishes, there won't be problems...so I don't see the point of arguing over it. There are loads of people who don't marry in the family and still have kids with problems, so why the issue? Just because it happens within the family doesn't mean it doesn't happen without it. Duh.
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Sister Skye has hinted at the scientific reasons for why marrying cousins is not a good idea. My profession is a cotton breeder and Masha'Allah I am somewhat knowledgeable about Mendelian genetics. I have worked out the probability of a child expressing a genetic defect (mm) carried by only one of their grandparents in heterozygous condition (Mm) while all the other grandparents and parents had the normal compliment (MM).
Generation #1
Grandmother X Grandfather
MM X Mm
Generation #2
50% of children MM
50% of children Mm
50% probability that your mother/father is Mm
50% probability that your aunt/uncle is Mm
Mother X Father
50% Mm X MM
Aunt X Uncle
50% Mm X MM
Generation #3
50% probability of Mm mother X 50% probability of Mm you
0.5 X 0.5 = 0.25 or 25% Mm you
50% probability of Mm aunt X 50% probability of Mm cousin
0.5 X 0.5 = 0.25 or 25% Mm cousin
You X Cousin
25% Mm X 25% Mm
Generation #4
50% of eggs or sperm from Mm are m
50% of eggs or sperm from Mm are M
0.25 X 0.5 = 0.125 or 12.5% m egg or sperm
0.125 X 0.125 = 0.0156 or 1 in 64 chance your child will have the genetic defect mm
Now what if both of the common grandparents each carried only 2 genetic defects? Well, the probability would be 1/64 + 1/64 + 1/64 + 1/64 = 4/64 or 1 in 16. If you had 4 children then the probability that at least one of those would have a genetic defect is 1 in 4.
Are you willing to accept the odds of 25% (yes) and (75%) no that one of your four children has a genetic defect?
I understand exactly what you are saying. I certainly was not making the case to forbid something that Allah (swt) has not forbidden. I was just stating an example of genetic disorder problems that could arise from first cousins marrying.I still stand by what I said brother. You and sister skye are not wrong, but I know I'm not either. Does it mean we shouldn't marry at all? Cause you can have kids with problems, both ways. Nothing takes place, unless Ta'ala Wills it. Nothing happens without His permission. i know you all know this very well.
But in some cases a cousin can become a wali. A cousin from mother's side (if I'm not mistaken) can become a wali.
But in some cases a cousin can become a wali. A cousin from mother's side (if I'm not mistaken) can become a wali.
Generation #2
50% of children MM
50% of children Mm
50% probability that your mother/father is Mm
50% probability that your aunt/uncle is Mm
Mother X Father
50% Mm X MM
Aunt X Uncle
50% Mm X MM
Generation #3
50% probability of Mm mother X 50% probability of Mm you
0.5 X 0.5 = 0.25 or 25% Mm you
50% probability of Mm aunt X 50% probability of Mm cousin
0.5 X 0.5 = 0.25 or 25% Mm cousin
You X Cousin
25% Mm X 25% Mm
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