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.
Genetic Marker/Locus (plural-âlociâ). A genetic marker or locus indicates the position of DNA on a chromosome. The word âlociâ is often used to describe the genetic markers used for DNA testing. For example, D3S1358 the D marker is on the 1358th locus described on chromosome 3.The letters in the marker name provide other information about the DNA molecule where the marker is found. genetic marker or locus indicates the position of DNA on a chromosome. The word âlociâ is often used to describe the genetic markers used for DNA testing. For example, D3S1358 the D marker is on the 1358th locus described on chromosome 3.