You are here:
Home > Departments > Parentage Testing & ID > Other DNA Tests
Other DNA Tests
DNA maternity testing can conclusively determine whether a woman is the true biological mother of a child. A child inherits one half of his/her genetic information from his/her mother and the other half from the father. If an alleged mother is the true biological mother of a child, the maternal half of the child's genetics will match the alleged mother's genetic profile perfectly. If the tested woman is not the true biological mother of a child, her DNA profile will not match the child's and the test will clearly show that the child's maternal genes come from another woman.
A question which is commonly encountered by families with twins is "are they identical or fraternal?" The twin zygosity test is used to conclusively determine whether twins are identical or fraternal. Knowing whether twins are identical or fraternal is often difficult. Appearance alone often is not a reliable method in determining twin type because identical twins do not always look exactly the same, and fraternal twins can sometimes look very similar, leading to confusion about exactly what type of twins they are. Sometimes, twins grow up never knowing for sure whether they are identical twins or not. The only way to conclusively determine whether twins of the same sex are identical is through a simple DNA test.
In cases where a paternity test cannot be performed, the Y-Chromosome test is very useful for determining distant relationships between suspected male relatives to determine whether they are related. The Y-Chromosome is present only in males and is passed down from father to son to grandson. As a result, the Y-Chromosome test can be used to determine whether two males are related through their paternal line. The Y-Chromosome test is very useful for families to determine whether they are related along the paternal line in situations where a paternity test cannot be performed. For example, the Y-chromosome test can be used to test paternal cousins, nephews and uncles, grandfather and grandson, etc. to see if they are related along the paternal line. Males who have a common male ancestor will have the same Y Chromosome.
DNA ID Profiling
Call our office for more information and pricing.