Question
a. Serology
b. Stratigraphy
c. Pedigree
Answer :
Word Count : 762
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Skip in 10
a. Serology Serology is the scientific study of blood serum and other body fluids, primarily concerned with the detection and analysis of antibodies and antigens. In anthropology, especially biological and forensic anthropology, serology plays a significant role in understanding human biological variation, population genetics, ancestry, and medico-legal investigations. Before the widespread use of DNA analysis, serological methods were extensively employed to identify blood groups, determine biological relationships, and study genetic diversity among human populations. Anthropologists use serological markers such as the ABO, Rh, MN, and other blood group systems to examine genetic similarities and differences among populations. These markers help in tracing migration patterns, reconstructing population history, and understanding evolutionary relationships. Serological data also contribute to the study of gene frequencies and the effects of natural selection, genetic drift, mutation, and migration on human populations. In forensic anthropology, serology assists in identifying blood stains, body fluids, and biological evidence recovered from crime scenes. Although molecular techniques have largely replaced traditional serology, it still provides preliminary information in forensic investigations. Serological testing also aids in determining species origin and identifying biological samples when DNA analysis is not immediately available. Despite its importance, serology has limitations because blood group markers provide relatively low discriminatory power compared to modern DNA profiling. Environmental degradation and contamination may also affect the reliability of serological evidence. Nevertheless, serology remains a valuable tool in anthropological research due to its historical significance and contribution to the understanding of human biological diversity. b. Stratigraphy Stratigraphy is the branch of archaeology and geology that studies the sequence, distribution, and relationship of soil and sedimentary layers, known as strata. It is one of the fundamental
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