There are two main blood groupings in humans, called ABO and rhesus. Both are genetically determined. The ABO system has three gene variants known as alleles: A, B and O. Each of us inherits two, one from each parent. A and B are dominant and O is recessive. People who inherit two Os are blood… Read More
“A, B,AB or O: a paper-based test could reveal your blood type in just half a minute, allowing hospitals to rapidly administer the right blood in an emergency.” (New Scientist, 2017, p.19). The test could be particularly useful in war zones or remote areas where there are no labs to carry out blood typing. Knowing your blood type… Read More
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