Two blood tests can check for antibodies that attack red blood cells: the direct Coombs test and the indirect Coombs test. The direct Coombs test is done on a sample of red blood cells from the body. It detects antibodies that are already attached to red blood cells.
1 Marker: A specific place on a chromosome with two or more forms, called alleles, the inheritance of which can be followed from one generation to the next. 2  In Y-chromosome DNA testing, this refers to non-coding Y-chromosome DNA.3  Numbers designate the individual DNA segments. For example, in humans, one allele of the eye-color gene produces blue eyes and another allele of the eye-color gene produces brown eyes. 2  Administrator: Also known as a Project Administrator, Group Project Administrator, Project Manager, Coordinator and Co-Coordinator.
In general, geneticists use random primers in their search for DNA markers, but that process is often long and arbitrary, and it can result in researchers spending a lot of time and money to identify just one DNA marker. A PCR-based DNA marker for detection of mutant and normal alleles of thr Wx-D1 gene of wheat. Identification of a null allele at the Wx-B1 locus in some of Iranian bread wheat genotypes. Identification of a closely linked DNA marker, DXS 178, to further refine the X-linked agammaglobulinemia locus.