THE ‘OUT OF AFRICA HYPOTHESIS’ ESSAY Explain The ‘Out Of Africa’ Hypothesis Using Evidence From Various Sources To Support It. Content: 17 Synthesis: 3 THE ‘OUT OF AFRICA HYPOTHESIS’ Scientists accept that man originated in Africa Then migrated out of Africa to all parts of the world (2) Fossils evidence (1) Any THREE of.. Taung Child / (Australopithecus africanus) discovered in Northern Cape / Taung Mrs. Ples / (Australopithecus africanus) discovered at Sterkfontein caves Kromdraai / ( Paranthropus robustus) discovered at Sterkfontein. Florisbad man / (early Homo sapien) found in Florisbad/ Free State Nutcracker man / (Paranthropus boisei) found in Oldivia Gorge/ Tanzania Handy man / (Homo habilis) found in Oldivia Gorge / Tanzania Laetoli footprints found in Tanzania Toumai /(Sahelanthropus tachadensis) found in Chad Name three skulls (1 mark each) and give place of discovery (1 mark each) (max 6) DNA from Y-Chromosome (1) Most of the Y- chromosome is passed on from father to son without being mixed with nucleotides of mother In this way male ancestry can be traced Using mutant nucleotides as makers Everyman alive is traced to a common ancestor in east africa 60 000 years ago (max 3) Mitochondrial DNA (1) Is handed from mother to child By following mutant nucleotides in mitochondrial DNA, we are able to trace our female line of decent. Mutations take place here at a faster rate which is an advantage Leads to ancestral female in east Africa 150 000 years ago (max 3) ASSESSING THE PRESENTATION OF THE ESSAY Marks Descriptions 3 Well structured – demonstrates insight and understanding of question 2 Minor gaps or irrelevant information in the logic and flow of the answer 1 Significant gaps or irrelevant information in the logic and flow of the answer 0 Not attempted/nothing written other the question number/ no relevant information
Posted on: Sun, 01 Sep 2013 17:58:23 +0000
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