Fingerprint Patterns in Relation to Gender and Blood Group among Students of Delta State University; Abraka; Nigeria

Introduction: Fingerprint patterns are genotypically determined and remain unchanged from birth till death. Purpose of the study: The purpose of this study was to determine fingerprint patterns in relation to gender and blood group among students of Delta state University; Abraka; Nigeria. Materials and Methods: A total of 490 subjects; aged 17-30 years were drawn using the systematic random sampling technique. The blood group of each subject was obtained from the records in the medical laboratory register of the Health Centre of the University. Results: Fingerprints of each subject were obtained using endorsing ink and plain white paper. Female had higher percentage of loop and whorl while male had higher percentage of arch. There was no significant association between gender and finger print patterns. Within the respective ABO blood groups; loop had higher percentages compared to arch and whorl. There was no significant association between finger print patterns and ABO blood group. Within the respective Rhesus blood groups; loop had higher percentages compared to arch and whorl. There was significant association between finger print patterns and Rhesus blood group. Within the respective ABO-Rhesus blood groups; loop had higher percentages compared to arch and whorl; except in blood group O negative where whorl has higher percentage. There was significant association between finger print patterns and ABO-Rhesus blood group. Conclusion: The study showed that fingerprints; gender and ABO blood groups can only be used independently to identify an individual

Palatal rugae patterns of Urhobos in Abraka, South-Southern Nigeria / Patrones de rugas palatinas de los Urhobos en Abraka, Sur-Sur de Nigeria

Human identification is a major task undertaken in forensic sciences. Palato-rugoscopy is based on the principle that no two palates are the same. The study of palatine rugae and the study of fingerprints are sometimes complementary as they operate in similar methods based on same scientific basis. The study intends to describe the shape and gender distribution of the palatine rugae and their prevalence in the studied population. The study sample consisted of 84 subjects, 42 males and 42 females of Urhobo ethnic and cultural background, between 17 and 30 years old, with full complement of maxillary teeth, drawn purposively from Abraka. The prevalence of palatal rugae shapes was: line (27.2 percent), sinuous (21.1 percent), angle (18.1 percent), polymorphhic (15.5 percent), point (7.5 percent), curve (6.2 percent), circle (4.2 percent). The total number of palatal rugae shape in the overall sample was 520, with females being slightly higher (51.5 percent) having mean of 6.38 (SD 1.45) than males (48.5 percent) having mean of 6 (SD 1.72). However, the difference between male and female was not statistically significant. The individualized pattern of palatal rugae makes it a reliable guiding tool in forensic identification.

La identificación humana es la principal tarea de las ciencias forenses. La palatorugoscopía se basa en el principio de que no hay dos paladares iguales. El estudio de los pliegues palatinos y el estudio de las huellas dactilares son en ocasiones complementarios, ya que operan con los mismos métodos, basados en las mismas bases científicas. Este estudio pretende describir la forma y la distribución por sexo de las rugas palatinas y su prevalencia en la población estudiada. La población de estudio consistió en 84 sujetos, 42 hombres y 42 mujeres de origen étnica y cultural Urhobo, entre 17 y 30 años de edad, con dotación completa de los dientes superiores, realizado en Abraka. La prevalencia de las diferentes formas de rugas palatinas fue: lineal (27,2 por ciento), sinuosa (21,1 por ciento), angular (18,1 por ciento), polimórfica (15,5 por ciento), en punto (7,5 por ciento), curva (6,2 por ciento) y circular (4,2 por ciento). El número total de formas de rugas palatinas en la muestra fue de 520, ligeramente superior en mujeres (51,5 por ciento) con una media de 6,38 (DE 1,45) que los hombres (48,5 por ciento), con una media de 6 (DE 1,72). Sin embargo, la diferencia entre hombres y mujeres no fue estadísticamente significativa. El patrón individualizado de las rugas palatinas es una herramienta de guía confiable para la identificación forense.