Scienceaid

RHESUS FACTOR AND BLOOD GROUP Last time, we discussed how to classify blood groups into A, B, AB and O. But, there's still something that's missing; we all notice that this so-called alphabets used to represent blood groups either end with "+ve" or "-ve" denoting positive or negative. This is known as the "RHESUS FACTOR". A person's blood can either be Rhesus positive (Rh+) or Rhesus negative (Rh-) which is known as our Rhesus factor and this is found out by testing our blood samples against a serum known as "Anti-Rh serum". On contact, if they clump, the blood is Rhesus-positive (Rh+), if they don't clump, the blood is Rhesus-negative (Rh-). For instance, a person belongs to blood group A and his/her Rhesus factor is Rh+, this implies that if the person goes for a blood group test, it will appear as A+ve. Have a nice day!!!

Goodday guys, this time around, we shall be discussing genetics and our focus would be reading blood groups. (This has been posted on our WhatsApp group as a presentation before now. Please ensure to leave your comments in the comments and join the WhatsApp group; here's the link: https://chat.whatsapp.com/JnowhI7aTAoHfFkD9cNZRL ) Genetics is the branch of biology that deals with the transmission and variation of inherited characteristics of particular chromosomes and DNA. So, how do we get to read blood groups? We shall be discussing that. The blood is claasified into four distinct groups: A, B, AB and O which is in relation to the antigens and antibodies found in the blood. Now, what do we understand by Antigens and Antibodies? Antibodies are found in the plasma while Antigens are found on the surface of the red blood cells. Antigens can either be A or B while antibodies can either be anti-a or anti-b. Let us take note that if Antigen A is present in a blood sam...