Blood Types

We spent quite a bit of time working on this in lab. So, I'm going to leave you to your lab notes and the text book to review this material. OK?

I was asked by a former student about rare blood types. You already know about A, B, AB, O, or Rh factors. There are actually many more factors involved, but those are the most important. In fact, tissue typing shows even rarer matches. However, when the factors beyond the A, B, AB, O, and Rh factors are included, some blood can be considered quite rare. To see a bit more on this, go to the following site put up by the American Red Cross.

Just so you know, I searched around a bit on the web and found out that not everyone understands blood typing. I found some misinformation out there. I just wanted to warn you a bit, in case you stumble upon other sites with some of the same bad stuff.