DNA, linguistic, and archaeological evidence all suggest that the first people to migrate to the Americas ... crossed the Atlantic Ocean from Africa crossed the Pacific Ocean from Australia crossed the Atlantic Ocean from Europe crossed the Beringia land bridge from Siberia into Alaska
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- Example 3The Basque people, who have a distinct language, live on the coastal border of France and Spain. The 700,000 modern Basques had long been thought to descend from hunter-gatherers who lived in the area about 7,500 years ago, before the first farmers arrived. DNA told a different story. Researchers compared the genome sequences of bones from eight Basque farmers who had lived in a cave in northern Spain from 5,500 to 3,500 years ago to genomes from other skeletons representing severalEuropean hunter-gatherers and early farming groups, as well as to modern Europeans. While the ancient farmers had genomes representing many groups, including those of hunter-gatherers, the Basques indeed have a unique genome – but one that descends from the earliest farmers, not from hunter-gatherers. Apparently, their uniqueness today is due to their self-imposed isolation as the rest of Europe interbred. Source: Lewis, Ricki. Human Genetics Concepts and Applications (2018). Twelfth edition.…Which statement about genome evolution is false? Mutations at the ends of introns are less likely than in the middle of an intron. Synonymous mutations rates are much higher than nonsynonymous mutation rates. Psuedogenes show high rates of mutations. Comparison of the mutational change in a specific gene can be used as a molecular clock to date evolutionary events between species. Evolution in a gene sequence will occur the fastest in regions that have the greatest effect on function.1. Why is the evolution of man considered as a complex process? 2. How does the Philippine government show that it values its human resources? 3. Why is Tabon Man considered as the oldest human remain excavated in the Philippines? 4. The Filipinos were civilized even before the coming of the Spaniards. Explain 5. The culture during pre-colonial period was shaped as a consequence of continued contacts with the great traditions of Asia. Explain 6. How large was the barangay was the barangay during the ancient period? Compare this with the present barangay. 7. The significant of History to our times is being told in this saying "The neglect of the past would be the failure of the present time." Explain 8. Can we stand as a State even without having the existence of other countries in the world? 9. What is the reason why there is a need of having different culture and values? 10. What approach is necessary in order to put as one the diversified culture and values? 11. Is being an…
- Evolution in Humans: 1) describe several techniques that paleontologists today use to establish fossil age 2) describe how tracking changes in DNA sequence among related organisms can be used to create a migration mapOnce nuclear DNA sequencing became fast and able to handle sequencing ancient DNA, living humans were found to have some Neanderthal genes. Is this finding clear evidence that some early modern humans did indeed hybridize with Neanderthals? Why?Mycobacterium tuberculosis causes most cases of tuberculosis. Recently, strains of this bacterium that are resistant to all known antibiotic drugs have become increasingly common. Explain how this change occurred; use the terms mutation, DNA, and natural selection in your answer
- Britain’s Queen Victoria was a carrier for the allele that causes hemophilia and she passed this allele on to some of her descendants. However, there is absolutely no evidence of anyone in Queen Victoria’s ancestry having hemophilia. A-gene flow B-genetic drift C-mutation D-natural selectionWould you anticipate the DNA sequences of people living in what is now known as Italy in 1000BC to be similar to those living in the same area in 1900BC? If so, why or why not?The inhabitants of the island Tristan de Cunha all descended from one indigenous family and a few sailors. The incidence of a rare eye disorder is much higher in these islanders than in other human populations. Presumably, at least one of the original island settlers carried the allele of the trait. A-mutation B-natural selection C-gene flow D-genetic drift
- The Out of Africa hypothesis (also called the African Replacement hypothesis) proposes that Homo sapiens arose in Africa and evolved there for several hundred thousand years. Then, some 85,000 years ago, a small band of Homo sapiens migrated out of Africa and populated the remainder of the world. Based on this hypothesis, what predictions would you make about worldwide human variation in mtDNA?The proliferation of the Homo sapiens species has been attributed by scientists to their migration around the African and Eurasian continents between 70,000 and 100,000 years ago. What enabled this constant migration? What resulted from this constant migration?Grizzly bears and polar bears are very closely related, so much so that they can reproduce to form hybrid offspring. Use your understanding of natural selection to describe how polar bears became a separate classification from the grizzly. Then describe how grizzly and polar bear evolution may be affected by climate change.