Why people have different blood groups is something of a mystery. But a new analysis suggests that different groups evolved to give populations a balanced defence against viruses and bacteria. People have either ...
Why do we have different blood types? Scientists estimate that blood types have been around for at least 20 million years. But doctors have only known about them for the last 116 years.Before 1900, countless people died after they were injec...
Why do we have different blood types? Scientists estimate that blood types have been around for at least 20 million years. But doctors have only known about them for the last 116 years. Before 1900, countless people died after they were injected with the wrong blood. But what makes a certa...
On the surface of red blood cells, there are always proteins attached to carbohydrates that help determine blood type. 2. Why is blood type AB rare? In fact, people with blood type AB are very rare and unique because they have both A and B antigens on the surface of red blood cells ...
Where Does Your Blood Type Come From? Just like your skin tone and eye color, your blood type is something you’re born with. It runs in your family and is determined by your parents’ blood types. You’re also more likely to share the same blood type with people that have the same...
On the other hand, people with blood type O do not produce either antigen, which makes them universal donors, 另一方面,O型血的人不生产任何一种抗原,这就使得他们成为了大众捐献者, but will cause their immune system to make antibodies that reject any other blood type. 但这也会导致他们的免疫系...
The blood:For us to live and function well, our body needs the right amount and pressure of blood. Blood allows system regulation and maintenance of homeostasis. Different types of people have different blood types. The blood types are A, B, AB and O....
At what age do people aquire antibodies against different blood types? Discuss the antigens and antibodies relative to the eight blood types. Why do some people have antibodies to A and B markers before they have been exposed to those blood ...
But that is a whole other story, and only occurs in women who have been pregnant before; even then it is not 100 percent the woman's body will fight against the unborn baby. It all depends on the mother's blood type and the baby's blood type. ...
But that is a whole other story, and only occurs in women who have been pregnant before; even then it is not 100 percent the woman's body will fight against the unborn baby. It all depends on the mother's blood type and the baby's blood type. ...