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uuboot89
Wysłany: Nie 13:58, 05 Gru 2010
Temat postu: uggs sale XY
Father gene decides to give birth to schoolboy daughter
A lot of people want to know he can give birth to the boy or unripe girl after all, science proves: The male the heredity in the parents from them easier unripe son or the tendency that give birth to a daughter more easily. This means the man that has many brother to give birth to a son more easily, and the man that has more sister gives birth to a daughter easily.
The research result of 1000 families will conduce to logarithm of university of button Ka Sier judgement, as parents they may give birth to son or unripe daughter more easily. Button blocks scientist of Si Er university to take an examination of benefit. Gailateli considers to discover, the male the heredity in the parents from them easier unripe son or the tendency that give birth to a daughter more easily. This means the man that has many brother to give birth to a son more easily, and the man that has more sister gives birth to a daughter easily.
Research includes the information of the 556387 people in pedigree of a clan of 927 homes of North America and Europe.
"Familial to these chart considers to discover, giving birth to schoolboy daughter is decided by heredity. We know now, if a male has more brother so he gives birth to a son more easily, if have more sister,give birth to a daughter more easily. But to the female, you cannot foretell. " the explanation says Gailateli.
The spermatozoon that the male decides to the sexual distinction of their child relies on them is to carry X or Y chromosome. The child that the X chromosome couple of X chromosome of the male and mother is born is the girl (XX) , what the X chromosome couple of Y chromosome of the male and mother is born is the boy (XY) .
The research of the university proves Niukasier, have up to now sealed gene is controlling a male is to more X chromosome still has more Y chromosome, the sexual distinction of this pair of their children will influential. Have man of more X chromosome amount and those who have amount of male of more Y chromosome than, affecting greatly be born every year sexual scale of the baby.
Unripe unripe female how to decide
A gene divides composition by two, be called wait for a gene, part genetic from parents. Gailateli proves, the man that carries two different types to wait for a gene may bring about 3 kinds of combination of a gene, control the scale of X and Y chromosome spermatozoon thereby:
The first kind of means calls Mm. Produce more Y chromosome sperm
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, this kind of circumstance leaves easy unripe son.
The 2nd kind calls Mf. Generation about the X of equal amount and Y chromosome spermatozoon
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, this kind of case is strange unripe female opportunity is equal.
The 3rd kind is Ff. The amount that X chromosome spermatozoon produces is much, give birth to a daughter easily.
"All along from parental both sides and decision male gives birth to a son more easily or the gene of unripe daughter can explain why the scale of the male in the overall crowd that we see and female is a balance. If the male is more, the female finds a spouse more easily, the man that has more daughter is met pass their gene morely to next generation, give birth to more woman baby. " Gailateli says.
Afterwar many what male baby is born
A lot of countries that participate in world war are in afterwar the amount that male baby is born is abrupt grow in quantity. One battle ends that one year, england every are born before photograph of 100 female baby compares big fight with respect to meeting grow in quantity 2 male baby are born. Building the gene that Lateli describes to be able to explain this is why.
Opportunity deflection at the son more and the man that a son came back from inside the war. Because this his son acceded father's advantage, give birth to a son more easily. Contrary, the daughter's much male lost the son of only in the war
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, this his son gives birth to a daughter easily. This explained why to live in the war the male that come down more it is strange man baby, this also is to cause male baby to be born much reason.
In a lot of states that have a record, the female baby of birthrate prep above of male baby. For example, england and United States are current the birth of baby of male and female scale is 105: 100.
How does gene produce effect
How do the familial stave that afore-mentioned mentioning understands gene produce effect. Although not be apparent, but the male is deciding to be born male unripe still female. Unripe schoolboy female gene is not big to female influence, but the child that they carry these gene and sends them to them.
In the first familial chart (A) , grandfather is Mm, so all his children are the male. He is only genetic a gene such as M give next generation, because his child has Mm more easily to wait for a gene, next generation of these children also can be the male only. Grandchildren has Mf to wait for a gene, because acceded from their father M and acceded then from the mother F. Result, their unborn son and daughter amount are equal.
In the 2nd family tree (B) in, grandfather is Ff, so he all children all are a female
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, these daughters carry Ff to wait for a gene, because father is mixed,the mother all is Ff. These daughters and the sexual distinction that carry Mm to wait for the male place of a gene to give birth to the child depend on this male, so grandchildren generation all is the male. Of grandchildren waiting for a gene is Mf
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, because of them from father that is genetic M, from the mother that is genetic F. Such, there were the son of fair amount and daughter in the child generation of grandchildren. Relevant Information:
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