which continent has the greatest human genetic diversity?

There are no characteristics, no traits, not even one gene that distinguish where the black population was: A. Ashley studied biology at Oberlin College, worked in several labs and earned a master's degree in science journalism from New York University's Science, Health and Environmental Reporting Program. Some historians believe that the Their results correlated well with differences in culture and language, and they were able map the migration of populations across the continent. The findings could be used as a foundation to study genetic risk factors for diseases and the genetic basis of the differences in . Hanchard and the research team were surprised by the amount of undocumented information they found, leading to two key takeaways from the study. As a science writer, she focuses on molecular biology and health, though she enjoys learning about experiments of all kinds. (Image credit: Minh Hoang Cong/500px via Getty Images) Bacteria and viruses tend to have very high genetic diversity . Genetic diversity is a function of a population's "age" (i.e., the amount of time during which mutations accumulate to generate diversity) and its size. C. Identity by "blood quantum" which continent has the greatest human genetic diversity? population, whether it's Malay, Irish, Zulus or Koreans. Large, new genetic databases from diverse populations have given researchers new tools to study this problem, but, so far, they have produced mixed results. A. the likelihood they will get certain inherited diseases. Which, Randi owns a small business with 10 employees. Many scientists have suggested that those who left Africa went through a bottleneck, where only a small number of individuals had offspring, thus reducing genetic diversity. In the most comprehensive study of Africangenetic diversity to date, a team of international scientists, led by Dr Sarah Tishkoff from the University of Pennsylvania in Philadelphia, US, has revealed Africa to be the most genetically diverse continent on Earth. Africans have more genetic variation than anyone else on Earth, according to a new study that helps narrow the location where humans first evolved, probably near the South Africa-Namibia border. nations, divided by language, custom and religion. B. Senegalese and Kenyans Humans have approximately 30,000 genes. B. IQ When white and black families of similar incomes are compared, I hope this will set the stage for future genomics research there, and future biomedical research' Dr Tishkoff said. All rights reserved. it possible for millions of average white Americans to own a home for 38% 3. Members of a race can be identified by their: A. E. South America. Democracy indicator of race but of having an ancestor from a malarial region. took for granted. quantum," i.e., the determination of Indian identity by ancestry, He is qualified for the job but turned down in favor of a U.S. citizen with fewer qualifications. Now, evolutionary geneticists have shown that our ancestors lost much of their genetic diversity in two dramatic bottlenecks that sharply squeezed down the population of modern humans as they moved out of Africa between 60,000 and 50,000 years ago. One reason the Iberian lynx has so little genetic variation is that it has undergone a series of population bottlenecks during the past few centuries that have kept its effective population size below 300, Godoy said. "The genetic diversity in Africa is greater than in any other region in the world, and accurate mapping and identification of new disease loci can be confounded . In Medieval Europe (circa 1300-1400), Ethiopians were looked upon Most plants and animals have nucleotide diversities below that value. still have, on average, twice as much wealth as nonwhites. The A, B, All the other populations of the world can be seen as a subset of Africans - every human trait found elsewhere can also be found in Africa, with . If a catastrophe wiped out everyone except people in Europe, how much of the total genetic variation in our species would be left? Based on genome-wide variation in 8,200 individuals, the new map has provided many insights into the evolutionary history and population structure of the Han Chinese which is the largest ethnic population in the world. A. racial steering and a substantial wealth gap between black and white families. to Christianity) back with him to London in 1617, the English had not separate all members of one race from all members of another race? All rights reserved. E. wealth gap between black and white families. 13. An Englishman had married an Indian Changes in climate may also have opened and closed new routes out of Africa, creating new barriers. C. Deterioration of inner cities When John Rolfe took his new bride Pocahontas (who had converted B. A bacterium that divides every 20 minutes, accumulating genetic mutations along the way? What if temperature determined a baby's sex? In the most comprehensive study of African genetic diversity to date, a team of international scientists, led by Dr Sarah Tishkoff from the University of Pennsylvania in Philadelphia, US, has revealed Africa to be the most genetically diverse continent on Earth. Your email address will not be published. Religion C. Pocahontas, a princess, married beneath her station by wedding Three times as much B. The company reports six categories of expenses on its income statement, including compensation and benefits, repairs and maintenance, and fuel. 1862 Homestead Act Amos suggests that obstacles--such as the sea, glaciers, or mountains--on the route from Africa to the Middle East, across the Himalayas and over the Bering Strait, held many migrants back, so that a much smaller group moved on, producing offspring to inhabit new parts of the globe. be left. A. Redlining as immoral. As wealth gets passed down from generation to generation, the legacy of died from diseases contracted from European traders and explorers by the

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