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Population Movements And Genetics IELTS Reading Answers
The Academic passage ‘Population Movements And Genetics’ is a reading passage that appeared in an IELTS Test. Read the passage below and answer questions 1 – 13. Beyond the questions, you will find the answers along with the location of the answers in the passage and the keywords that help you find out the answers.
Population Movements And Genetics
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| Question number | Answer | Keywords | Location of keywords |
|---|---|---|---|
| 1 | iv | A number of techniques developed since the 1950s, however, have placed the study of these subjects on a sounder and more objective footing | Paragraph A;
Line 2 |
| 2 | vii | Recent work on the problem of when people first entered the Americas | Paragraph B;
Line 1 |
| 3 | x | by comparing the Gm allotypes of two different populations (e.g. two Indian tribes), one can establish their genetic ‘distance’, which itself can be calibrated to give an indication of the length of time since these populations last interbred | Paragraph C;
Last line |
| 4 | i | Williams and his colleagues sampled the blood of over 5,000 American Indians in western North America during a twenty-year period. | Paragraph D;
Line 1 |
| 5 | vi | Geneticist Douglas Wallace has studied mitochondrial DNA4 in blood samples from three widely separated Native American groups: | Paragraph E;
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| 6 | ii | There are two other kinds of research that have thrown some light on the origins of the Native American population; they involve the study of teeth and of languages | Paragraph F;
Line 1 |
| 7 | E | The first, Paleo-lndian, wave more than 15,000 years ago was ancestral to all Central and South American Indians. | Paragraph D;
Line 5 |
| 8 | D | The second wave, about 14,000-12,000 years ago, brought Na-Dene hunters, ancestors of the Navajo and Apache (who only migrated south from Canada about 600 or 700 years ago) | Paragraph D;
Line 6 |
| 9 | C | Other tests showed that the Inuit (or Eskimo) and Aleut3 formed a third group. | Paragraph D;
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| 10 | B | The second wave, about 14,000-12,000 years ago, brought Na-Dene hunters, ancestors of the Navajo and Apache | Paragraph D;
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| 11 | A | Pima-Papago Indians in Arizona, As would have been predicted by Robert Williams’s work, all three groups appear to be descended from the same ancestral (Paleo-lndian) population. | Paragraph E;
Line 2 , 3 |
| 12 | A | Ticuna Indians in the Upper Amazon region of Brazil, As would have been predicted by Robert Williams’s work, all three groups appear to be descended from the same ancestral (Paleo-lndian) population. | Paragraph E;
Line 2 , 3 |
| 13 | A | Studies carried out by Turner of many thousands of New and Old World specimens, both ancient and modern, suggest that the majority of prehistoric Americans are linked to Northern Asian populations | Paragraph F;
Line 4 |
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