Tuesday, June 14, 2011
High I.Q's: Coming from Mothers or Fathers
Nadene Goldfoot
We humans have 23 pairs of chromosomes, or 46 total in each of our cells. The 23rd pair are the sex chromosomes, the X and the Y. The X holds the key to our IQ.
Males have an X and a Y chromosome, while females have two X's. It is found that females average a little better than males on IQ tests. More males are both mentally retarded or have IQ's at 135 and above. What causes all this seems to be the X chromosome. This is because only 54 out of the 1,098 protein-coding genes on X functions like the Y, of which the few genes Y carries are related to sperm production and male physical characteristics.
If a gene on X chromosome mutates in a female, there is a backup gene on the 2nd X chromosome which can fill the gap. But in a male, his Y genes cannot step up to the bat and help out. This accounts for about 300 genetic diseases and disorders in males like color blindness, muscular dystrophy, and about 200 brain disorders.
The male gets his X gene from his mother in her mtDNA. If he gets a favorable X-related-genetic mutation, it will not be overridden by a gene on his Y chromosome. The problem is that he cannot pass this gene to his son, but will always pass it to his daughter. The daughter's paternal X-chromosome recombines with her mother's X-chromosome in the formation of the daughter's egg cells. There is a 50% chance that she will pass it to the next generation. In the female, however, a good mutation on one X might be overridden by a normal gene on her other X.
This causes me to wonder about me inheriting any of my paternal grandmother's genes from her haplogroup W. She was often distracted while cooking and would burn something and I do the same thing. Our body shape is similar. My very bright father must have inherited his IQ from her. I also would have some of her IQ abilities along with my mother's IQ genes.
Does this mean that my grandson from my son has not inherited my mt X chomosome which is in my H2a1 haplogroup? My background and love for dancing and art work is coming out in my grandson. Of course, the mother of his mother has those same qualities, giving him a double dose which is quite possible. I'm sure he's brighter than I am. Then my grandson did not get my X chromosome holding the IQ genes.
My son is gifted with a wonderful IQ, and his father had an extremely high IQ. We can assume that his father received a mutated X gene from his mother to have such an unusual high I.Q, and believe me, his mother was a sharp cookie, but so was his father. I see that under this way of passing the gene along, his daughter would get the mutated X but not his son! I suppose then that my son inherited his high IQ from me! And all along I thought it was his father. My daughter has both her father's single X with the IQ and my X with the IQ. Little do we daughters know how capable we can be.
I'm bright, but not half as bright as my brother! There's another case of having a very high IQ and it being the male sibling. This means that my brother could not have received the X chromosome from his equally bright father, but from his mother, but that's where I got my brains, from my father! My brother was lucky to have had a very bright mother.
I wondered if on that very male Y gene there could possibly be a segment labeled High IQ along with broad shoulders, bass voice, etc. Evidently not. If that were so, only males would inherit it. Females have two chances of getting smart but one of those chances can be canceled out by the other, and the male has to depend on getting his smarts from his mother by having a 50% chance to do so, but with his odds, will turn it into a much higher IQ
.
So, bright females. Thank your fathers for adding to your brains. There's nothing that says our mother's IQ genes aren't working for us as well. We have the double dose of 2 XX's. No wonder we can do two or three things at the same time. Bright males, your probabilites for having extremely higher IQ's than females are great. You can thank your mothers for that. We females can be counted on to have a nice steady above average IQ but have less problems mentally and physically than males.
Perhaps more mutations have been happening in females as we are using our brains more and succeeding in the world in all fields. This will certainly improve our sons and our daughters. As females' skills have improved throughout the ages, so have the males of the nations. I see this as a most positive step in group evolvement. It's important to keep females educated in order to elevate the whole community. Look at what happens in a controlled group whereby the females are held down and minds are not expanded. Look at the productivity of that group. It's not doing well at all. For the well-being of a nation, the best thing to do is to keep women educated.
Reference: DNA and Genealogy by Colleen Fitzpatrick and Andrew Yeiser
Reference: http://ghr.nlm.nih.gov/handbook/basics/howmanychromosomes
http://en.wikipedia.org/wiki/Heritability_of_IQ added 6/15/11
http://www.askabiologist.org.uk/answers/viewtopic.php?id=1958
http://www.cerebrals.com/board/viewtopic.php?f=12&t=3233
http://wilderdom.com/personality/L4-1IntelligenceNatureVsNurture.html
We humans have 23 pairs of chromosomes, or 46 total in each of our cells. The 23rd pair are the sex chromosomes, the X and the Y. The X holds the key to our IQ.
Males have an X and a Y chromosome, while females have two X's. It is found that females average a little better than males on IQ tests. More males are both mentally retarded or have IQ's at 135 and above. What causes all this seems to be the X chromosome. This is because only 54 out of the 1,098 protein-coding genes on X functions like the Y, of which the few genes Y carries are related to sperm production and male physical characteristics.
If a gene on X chromosome mutates in a female, there is a backup gene on the 2nd X chromosome which can fill the gap. But in a male, his Y genes cannot step up to the bat and help out. This accounts for about 300 genetic diseases and disorders in males like color blindness, muscular dystrophy, and about 200 brain disorders.
The male gets his X gene from his mother in her mtDNA. If he gets a favorable X-related-genetic mutation, it will not be overridden by a gene on his Y chromosome. The problem is that he cannot pass this gene to his son, but will always pass it to his daughter. The daughter's paternal X-chromosome recombines with her mother's X-chromosome in the formation of the daughter's egg cells. There is a 50% chance that she will pass it to the next generation. In the female, however, a good mutation on one X might be overridden by a normal gene on her other X.
This causes me to wonder about me inheriting any of my paternal grandmother's genes from her haplogroup W. She was often distracted while cooking and would burn something and I do the same thing. Our body shape is similar. My very bright father must have inherited his IQ from her. I also would have some of her IQ abilities along with my mother's IQ genes.
Does this mean that my grandson from my son has not inherited my mt X chomosome which is in my H2a1 haplogroup? My background and love for dancing and art work is coming out in my grandson. Of course, the mother of his mother has those same qualities, giving him a double dose which is quite possible. I'm sure he's brighter than I am. Then my grandson did not get my X chromosome holding the IQ genes.
My son is gifted with a wonderful IQ, and his father had an extremely high IQ. We can assume that his father received a mutated X gene from his mother to have such an unusual high I.Q, and believe me, his mother was a sharp cookie, but so was his father. I see that under this way of passing the gene along, his daughter would get the mutated X but not his son! I suppose then that my son inherited his high IQ from me! And all along I thought it was his father. My daughter has both her father's single X with the IQ and my X with the IQ. Little do we daughters know how capable we can be.
I'm bright, but not half as bright as my brother! There's another case of having a very high IQ and it being the male sibling. This means that my brother could not have received the X chromosome from his equally bright father, but from his mother, but that's where I got my brains, from my father! My brother was lucky to have had a very bright mother.
I wondered if on that very male Y gene there could possibly be a segment labeled High IQ along with broad shoulders, bass voice, etc. Evidently not. If that were so, only males would inherit it. Females have two chances of getting smart but one of those chances can be canceled out by the other, and the male has to depend on getting his smarts from his mother by having a 50% chance to do so, but with his odds, will turn it into a much higher IQ
.
So, bright females. Thank your fathers for adding to your brains. There's nothing that says our mother's IQ genes aren't working for us as well. We have the double dose of 2 XX's. No wonder we can do two or three things at the same time. Bright males, your probabilites for having extremely higher IQ's than females are great. You can thank your mothers for that. We females can be counted on to have a nice steady above average IQ but have less problems mentally and physically than males.
Perhaps more mutations have been happening in females as we are using our brains more and succeeding in the world in all fields. This will certainly improve our sons and our daughters. As females' skills have improved throughout the ages, so have the males of the nations. I see this as a most positive step in group evolvement. It's important to keep females educated in order to elevate the whole community. Look at what happens in a controlled group whereby the females are held down and minds are not expanded. Look at the productivity of that group. It's not doing well at all. For the well-being of a nation, the best thing to do is to keep women educated.
Reference: DNA and Genealogy by Colleen Fitzpatrick and Andrew Yeiser
Reference: http://ghr.nlm.nih.gov/handbook/basics/howmanychromosomes
http://en.wikipedia.org/wiki/Heritability_of_IQ added 6/15/11
http://www.askabiologist.org.uk/answers/viewtopic.php?id=1958
http://www.cerebrals.com/board/viewtopic.php?f=12&t=3233
http://wilderdom.com/personality/L4-1IntelligenceNatureVsNurture.html
Labels: chromosomes, dna, fathers, inheriting, IQ, mothers, mtDNA, mutate, sons, Ydna
Saturday, July 05, 2008
Male Ydna Test Results: Q1, Q, R1b
Results for the three people tested for the Ydna carried by the male line are in.
The Q line is said to come from the Atlai Mountains in Turkey.
These three haplogroups all split off from P. Q split off in Central Asia. Some Qs must have moved into Siberia and then across into the Americas and then became Q3s on the other side.
In Europe there are two types of Qs found in the British Isles and Scandinavia. A few were found in France and England. None of these types are at all common in Lithuania, where possible my grandfather, Nathan Goldfoot came from, though all we know is that he came from "Russia", which covers a large territory. He had married Hattie from Lithuania/Poland, in Suwalki. Q's are more prevelant in the southern part of Central Asia around the Black Sea and across the Mediterranean coast.
So from our mother and father, we carry the Ydna "Q" from East Asia, and the mtDNA "H" from West Eurasia.
The male R1b comes from Western Eurasia and East Asia.
The Q line is said to come from the Atlai Mountains in Turkey.
These three haplogroups all split off from P. Q split off in Central Asia. Some Qs must have moved into Siberia and then across into the Americas and then became Q3s on the other side.
In Europe there are two types of Qs found in the British Isles and Scandinavia. A few were found in France and England. None of these types are at all common in Lithuania, where possible my grandfather, Nathan Goldfoot came from, though all we know is that he came from "Russia", which covers a large territory. He had married Hattie from Lithuania/Poland, in Suwalki. Q's are more prevelant in the southern part of Central Asia around the Black Sea and across the Mediterranean coast.
So from our mother and father, we carry the Ydna "Q" from East Asia, and the mtDNA "H" from West Eurasia.
The male R1b comes from Western Eurasia and East Asia.
Our mtDNA Results: H (16354T)
The mitrochondial dna which traces the female line of Mildred Goldfoot b: 1913-2005 to her mother, Augusta "Gustafva Johansson Gustafson" Robinson b: 1870-1955, and her mother in Sweden was Lisa Ersdotter, born in Backgarden, Lumsheden, Sweden in 1830-12-07 and died in 1891-01-17, and her mother was Brita Hansdotter b: 1806-1887, and her mother was Lisa Olsdotter b: 1766-1831 who was married to Erik Hansson, turned out to be H with the HVR1 as: 16 354T. This was done as a 12 allele test. We already know that our grandmother's family came from Lumsheden, Sweden, a village in Northern Sweden. About half of Europe's women bear this H haplogroup. The differences show up in the HVR1.
Men carry both Ydna from their fathers and mtDNA from their mothers. They can be tested for both, which is what we did. David was able to be tested. Women can only be tested for the mtdna, so if you have a brother, have him tested for both. Whereas the male line mutates at a faster speed, the female line does not. It only mutates once every 10,000 years.
H stands for Helena. The book, The Seven Daughters of Eve presents the seven types of Haplogroups for the female line. Helena was born about 20,000 ago on land between France and Spain. She belonged to a family of hunters who harvested oysters to supplement their diet of meat. We arrived in Europe from the Middle East. We reached England about 12,000 years ago after the Ice Age. Read http://www.duerinck.com/migrate.html .
The prevailing thought is that we are all related through our mothers. Professor Bryan Sykes at Oxford Universtiy has identified seven women who lived thousands of years ago from whom almost every native European is directly descended through the maternal line.
Our Swedish H came from Lumsheden Village, Svardsjo Parish, Kopparbergs Ian, Sweden. I've traced the female line to 1766 so far in this village.
Men carry both Ydna from their fathers and mtDNA from their mothers. They can be tested for both, which is what we did. David was able to be tested. Women can only be tested for the mtdna, so if you have a brother, have him tested for both. Whereas the male line mutates at a faster speed, the female line does not. It only mutates once every 10,000 years.
H stands for Helena. The book, The Seven Daughters of Eve presents the seven types of Haplogroups for the female line. Helena was born about 20,000 ago on land between France and Spain. She belonged to a family of hunters who harvested oysters to supplement their diet of meat. We arrived in Europe from the Middle East. We reached England about 12,000 years ago after the Ice Age. Read http://www.duerinck.com/migrate.html .
The prevailing thought is that we are all related through our mothers. Professor Bryan Sykes at Oxford Universtiy has identified seven women who lived thousands of years ago from whom almost every native European is directly descended through the maternal line.
Our Swedish H came from Lumsheden Village, Svardsjo Parish, Kopparbergs Ian, Sweden. I've traced the female line to 1766 so far in this village.
