Simply put, you are A, B, AB or O depending on if you have A antigens, B antigens, both antigens or neither of the antigens.

简单的来说，根据你的抗原是A型、B型、AB型，还是没有抗原而将你区分成A型血、B型血、AB型血和O型血。

Meanwhile, O-type doesn't have A or B antigens, so those folks have antibodies for both. That means that they can only accept other O blood.

同时，O 型没有 A 或 B 抗原，所以这些人两种都有抗体。这意味着他们只能接受其他 O 型血。

If you inherit one of each, the resulting codominance will produce both A and B antigens, which is type AB.

如果你每一种基因继承了一个，根据共显性会同时生产出A和B抗原，这就是AB型血。

Cats, on the other hand, have only two possible antigens — A and B, although they aren't the same A and B antigens found on human blood.

而猫只有两种可能的抗原——A和B，不过与人类血液中的A和B抗原不同。

If your red blood cells have B antigens, you will have type B blood.

如果红细胞有B抗原，则是B型血。

Your immune system would be used to seeing B antigens and would tolerate them just fine.

免疫系统将习惯于看到B抗原，并能很好地耐受它们。

And since the presence of A-B antigens is controlled by different genes than the Rh ones, we end up with eight different blood types — four separate groups, each with two variations.

由于 A-B 抗原与 Rh 抗原是由不同的基因控制的，我们最终得到了八种不同的血型——四个不同的组，每组有两种变体。

That person's immune system is used to seeing both A and B antigens.

该人的免疫系统习惯于同时具有A和B抗原。

If your red blood cells have both A and B antigens, then your blood type is said to be AB.

如果红细胞同时有A和B抗原，则血型就是AB型。

If you have type B blood, your red blood cells will have B antigens, and your body will produce anti-A antibodies.

如果是B型血，红细胞会有B抗原，身体会产生抗A抗体。

Being blood type B means you inherited type B antigens, and the red blood cells in your body would have B antigens attached to them.

血液为B型意味着遗传了B型抗原，并且体内的红细胞将附着B抗原。

If you have type AB blood, your red blood cells will have both A and B antigens, and therefore produce no antibodies.

如果是AB型血，红细胞同时有A和B抗原，因此不会产生抗体。

But because people with type AB blood produce both A and B antigens, they don't make antibodies against them, so they will recognize either as safe, making them universal recipients.

但由于AB型血的人生产A和B两种抗原，他们对A和B型血都不产生抗体，所以他们对于两种血都能安全接受，这使得AB型血的人“来者不拒”。

But A and B antigens are not the only antigens found on your red blood cells; you also have an antigen called the Rh factor.

但是A和B抗原并不是红细胞上的唯一的抗原；还有一种称为Rh因子的抗原。

So if you don't have a particular antigen on your blood cells — say the type B — then you do have antibodies that are going to label those B antigens for attack, should they enter your space.

所以如果你的血细胞上没有特定的抗原——比如说 B 型——那么你有抗体来标记这些 B 型抗原，一旦它们进入你的空间，它们就会攻击。

The Rh factor is simply a red blood cell antigen - just like the A antigen and the B antigen that are used to determine your blood type.

Rh因子只是一种红细胞抗原，就像用来确定血型的A抗原和B抗原一样。

While the A and B alleles code for A and B antigens, the O allele codes for neither, and because we inherit one copy of each gene from each parent, every individual has two alleles determining blood type.

A和B基因进行编码成为A和B抗原，O基因则一个都不是。因为我们从每一个父母那继承了每个基因的复制品，每个人拥有两个决定血型的等位基因。