CLOUDS HILL IMAGING LTD / SCIENCE PHOTO LIBRARY CLOUDS HILL IMAGING LTD / SCIENCE PHOTO LIBRARY
Blood group test. Close-up footage of blood samples being typed in a laboratory as part of blood group testing. The samples have been placed onto a spot plate (or reaction plate) and a pipette is being used to add antibody serums. There are four human blood types (groups): A, B, AB and O. The antibody serums will react with the antigens in the blood, with the resulting appearance of the blood used to identify the blood group. For a sequence showing the blood group testing, see clips K006/5135, K006/5130, K006/5137, K006/5161, K006/5185, K006/5132, and K006/5192.
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