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[自然百科] 【整理】2009-08-08 血型的奥秘

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HOMEWORK
Kasey on Why Tell me Why. Someone asked why veins are blue and blood is red. So that's part of this question: why do we have different blood types?  
"Blood types are inherited, just like you inherit your eye color, or your hair texture, so you get a gene from each parent, and that determines what the child's blood type is gonna be."
There's sort for blood types?

"There is, there is A, type A, type B, type AB, and type O. The only difference is what sugar molecule is added to that point. So they are actually kind of generated from each other. So for you to have O, both of your parents must be O. An O only contribute an O. But, if, for example, your father was A and your mother was O, he could actually, one of his parents might have also been O, so he can contribute either an A gene or an O gene, that you could be O, cause you get an O from him and from your mother, while your sister might be an A. There are some studies that show that the reason that A, B, O and AB have been distributed the way they were was because of forces that they think primarily connected to the organism that causes malaria.  It turned out to be that people who had type O were actually able to survive an attack of malaria. It appeared that malaria organism was more readily able to attach to red cells that were type A or type B, and actually kill those patients before they have a chance to reproduce. / Those people who had type O actually would get sick, but wouldn't die, and had an opportunity to reproduce, and that's how the gene goes forward. And then, if you look at a map of where malaria is now and where the different peoples are, you can see that the type O was followed, there is where there's malaria, A and B has gone to colder climates where malaria wasn't a problem, and then AB was just, you know, a combination of the reason.
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  • wukeyu123

why someone ask why  like danger blue and what is red, that is for those questions why do we have different blood types. Blood types are inheritage , just like your inherit eyes colour ,or  your hair texture, so you get gene from each parents, and determine for the child blood types going to be.
What is sort of type blood. There is there is type A, type B, type AB and type O. The only different is what sugar molecule is added to that point so they are actually kind of generate from each other. So for u, to have O, both of parents must be O when only contribute of O, but if for example yr father was A and yr mother was O. He can actually, one of his parents might also to be O. so he can construe be either a gene and o gene, u could be o, because u get o gene from him or from mother, from your mother while yr sister might be A.
There are some studies show that the reason that A,B, O and AB have been distribute the way they were was because forces that they think primarily connected to the organism that causes malaria. It turn out to be people have type O, or actually able to survive ~~~~~~

哎,好难哦,写不下去了都
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homework
Some one asked why veins’re blue and blood is red, so that sparks this question that why do we have different blood types. What types are inherited is just like you inherit your eye color or your hair texture, so you get a gene from each parent, and that determines what the child’s blood type is gonna be
There is what for blood types?
There is. There’s A, type A, type B, type AB and type O
And the only difference is what sugar molecule is added to that point, so they’re actually kind of generated from each other
So for you, to have both of your parents’ must be O, it can only contribute to be an O
But if, for example, your father was A and your mother was O, he could actually, one of his parents might have also been O. So he can contribute either an A gene or an O gene. So you could be an A because you got O from him and from your mother, while your sister might be an A
There’re some studies that show the reason that the A B O and AB have been distributed the way they were was because of the forces that they think that primarily connected to the organism that causes malaria.
It turned out to be that people who had type O were actually able to survive an attack from malaria. It appeared that malaria organism was more readily able to attach to red cells that were type A or Type B and actually kill those patients before they have a chance to reproduce. Those people who had type O, actually would get sick, but wouldn’t die, and had an opportunity to reproduce, and that’s how the gene goes forward.
And then if you look at the map of where malaria was there, and where the different peoples are, you can see the type O was followed there is where was malaria, A and B has gone to colder climates where malaria wasn’t a problem
And then AB was just, you know, combination of a brace
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HW
Kasey on Why and Tell Me Why. Someone asked why veins are blue and blood is red.
So that’s part of this question: why do we have different blood types?

Blood types are heritages just like you inherit your eye color or your hair texture… So you get a gene from each parent and that determines what the child’s blood type is gonna be.

There’s sort for blood types?

There is. There is A… Type A, type B, type AB and type O. And the only difference is what sugar molecular is added to that point… So they are actually kind of generated from each other.
So for you to have O, both of your parents must be O and only contribute an O. But, if, for example, your father was A and your mother was O, he could actually… one of his parents might has also been O, so he can contribute either an A gene or an O gene that you could be O ‘cause you get an O from him and from your mother while your sister might be an A.
There are some studies that show that the reason that A, B, O, AB have been distributed the way they were, was because the forces that they think primarily connected to the organism that causes the malaria. It turned out to be that people who have type O were actually able to survive in attack of malaria. It appeared that malaria organism was more relatively able to attach to red cells that were type A or type B. it can actually kill those patience before they could have a chance to reproduce. Those people who have type O could actually get sick but wouldn’t die and have an opportunity to reproduce and that’s how the gene goes for.
And then if you look at a map of where malaria is now and where the different peoples are, you can see that type O is followed. There is malaria. A and B has gone to colder climate where malaria wasn’t there.
A problem, and then, AB was just, er, you know, a combination of the reason…
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本帖最后由 littlecase 于 2009-8-11 21:16 编辑

HW

Kasey on Why Tell Me Why. Someone asked why veins are blue and blood is red. So that's part of the quesion, why do we have different bloods.

Blood types are inherited, just like you inherit your hair color, or your hair texture. So you get a genre from each patient, and that determines what the child’s blood type is gonna be.

There is sort of blood type?

There is. There is type A, type B, type AB and type O. And the only difference is what sugar molecule is added to that point. So there are actually kind of general for each other. So for you to have O, both your parent must be O, an O only contribute to O, but, if example, your father was A, your mother was O, he can actually one of his parent might also be O genre, he can contribute either A genre, or O genre, you could be O because you get O from him, or from your mother while your sister might be A genre. There are some studies that show the reason A, B, AB and O be distributed the way we were because forces that they think primarily connected to the organism that causes malaria. It turns to be that people who have type A or actually survive an attack of a malaria. It appears that malaria organism was more readily able to attach red cells they were type A or type B, and actually kill those patients before they have a chance to reproduce those people who have type O actually we get sick, but won’t die and have an opportunity to reproduce, and that's how the genre goes forward. And then if we look at a map of where there malaria is now, and where the different people are? You can see that type O was followed, there is a malaria A and B has gone to cold climates where malaria wasn’t a problem. And then A B was just, you know, a combination of the reason.
HOMEWORK


Last week on “Why? Tell Me Why!” someone asked why veins are blue and blood is red. So that’s part of this question: why do we have different blood types?

Blood types are a heritage just like you inherit your eye color or your hair texture. So you get a gene from each parent and that determines what the child’s blood type is going to be.

There’s sort of four blood types?

There is. There is A (Type A), type B, type AB and type O. And the only difference is: what sugar molecule is added to their point, so they all actually kind of generate from each other. So for you to have O, both of your parents must be O and only contribute an O. But if, for example, your father was A, and your mother was O, he can actually, one of his parents might have also been O, so he can contribute either an A gene or an O gene, that you could be O, ‘coz you get an O from him and from your mother, while your sister might be an A.

There are some studies that show that the reason that A, B, O and AB have been distributed the way they were, was because of forces that they think of primarily connected to the organisms that causes malaria. It turned out to be that people who had type O were actually able to survive an attack of malaria. It appeared that malaria organism was more readily able to attach to red cells that were type A or type B, and actually kill both patients before they have just reproduced. Those people who had type O actually would get sick, but wouldn’t die, and had an opportunity to reproduce, that’s how the gene goes forward.

And then if you look at a map of where malaria is now and where the different peoples are, you can see that type O was followed. There is where there is malaria. A and B has gone to colder climates where Malaria wasn’t a problem. And then AB was just, you know, combination of the races.
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