The discusses work done by scientists in tracing the ascendent of the original Australian settlers . in that location are currently some a(prenominal) questions still surrounding the root of prehistoric Australian settlers . The oldest humane beings fogeys outside of Africa are outcome in Australia which is puzzling hook the large distance betwixt Australia and Africa . There are all the same two distinct sets of prehistoric tidy sum in Australia . The antiquated finds at Lake Mungo are gracile . On the other forthright , the younger finds show beefy morphology . To find clues pretty the puzzle , the scientists used desoxyribonucleic acid analysis . They comparabilityd the catching date of reference of the aboriginal Australians to the known knowledge domain DNA tree . The samples came from mtDNA and the Y chromosome . The mtDNA samples were effect to be in get out with branches M and N in the global genetic tree . The Y chromosome samples were acquit to be in line with branches C and F . These branches arrange the samples with the exodus from Africa more or less 50-70 ,000 years agone . This tells us that prehistoric Australian settlers came from Africa 50 ,000 years ago .
This is backed by the archaeological evidences . A large dissimilitude was also found amidst the Australian samples and the genetic make up around the Indian Ocean . This meant that the two populations puddle been isolated for a ample timeTwo questions that I have roughly the include the pastime . original what are the details round where the samples were taken ? Did the scientists usurp the samples from directly s aboriginal Australians or from the fossil record . secondly , wherefore did they choose mtDNA and the Y chromosome as the genetic sequences to compare ? What is the richness of these two in ascertain the migratory or evolutionary path of a people ...If you want to beat up a full essay, dedicate it on our website:
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