Journal of Forensic Dental Sciences
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Year : 2015  |  Volume : 7  |  Issue : 1  |  Page : 76-79

Molecular insights of saliva in solving paternity dispute

1 Department of Oral Pathology and Microbiology, Babu Banarasi Das College of Dental Sciences, Lucknow, Uttar Pradesh, India
2 Department of Medical Genetics, Sanjay Gandhi Post Graduate Institute of Medical Sciences, Lucknow, Uttar Pradesh, India
3 Department of Oral and Maxillofacial Pathology, Maharana Pratap College of Dentistry and Research Center, Gwalior, Madhya Pradesh, India

Correspondence Address:
Madhvika Patidar
MRA - A/74, Sanjay Gandhi Post Graduate Institute of Medical Sciences Campus, Raibarielly Road, Lucknow - 226 214, Uttar Pradesh
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0975-1475.150325

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Everyone is born with a unique genetic blueprint i.e. its own genome. Special locations called loci on different chromosomes display predictable inheritance patterns that could be used to determine biological relationships. These locations contain specific DNA sequences, called markers, which forensic scientists use as identifying marks for individuals. Saliva is a potentially useful source of genomic DNA for genetic studies. Paternity testing is based on the premise that we inherit half our DNA from our father and half from our mother. Therefore, persons who are biologically related must share similar DNA profile. Conversely, the absence of similarities in the DNA profiles of the child and the alleged father is used as proof that no biological relationship exists. In this paper, a female complained for being raped a year back by Mr. X and accused him of being father of her 3-months-old baby girl. DNA testing was done using saliva for the child and blood sample from the mother and the suspected father. The finding presented here allows the use of saliva as an alternative source of blood.

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