Lecture 3b: Multiple alleles Flashcards
three or more alleles of the same gene are found
multiple alleles
characterized by the presence of antigens on the surface of erythrocytes
AB Blood types
Blood type determination: mix unknown blood sample with __ containing Type A or Type B __
- antiserum
- antibodies
Discovered the ABO Blood Group System in 1901
Karl Landsteiner
were working under Landsteiner discovered type AB a year later in 1902.
Adriano Sturli and Alfred von Decastello
World Blood Donor Day
June 14 (Birthdate of Landteiner)
Components of the blood
- 55% plasma
- 45% solid substances
contain hemoglobin, a protein that binds oxygen
red blood cells
fight infection
white blood cells
help the blood to clot
platelets
contains salts and various kinds of proteins
plasma
The differences in human blood are due to the presence or absence of certain protein molecules called __ and __.
- antigens
- antibodies
located on the surface of the red blood cells
antigens
in the blood plasma
antibodies
If you belong to the blood group A, you have __ on the surface of your red blood cells and __ in your blood plasma.
- A antigens
- B antibodies