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Approximately 98% of the information in human DNA is shared by chimpanzee DNA. This is evidence of which of the following?
As chimpanzees evolve, they will become more similar to humans. |
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Chimpanzees and humans share a common ancestor. |
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Humans evolved from chimpanzees. |
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All of the above. |
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- DNA sequences in many human genes are very similar to the sequences of corresponding genes in chimpanzees. Which of the following statements is the explanation for this result? Group of answer choices Convergent evolution led to the DNA similarities. Humans and chimpanzees share a relatively recent common ancestor. Humans evolved from chimpanzees. Chimpanzees evolved from humans.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.Which of the following species would be expected to form a hybrid double-stranded DNA molecule, at the highest temperatures, when their DNA is mixed with the DNA of humans? the common chimpanzee (Pan troglodytes) the agile gibbon (Hylobates agilis) the orangutan (Pongo pygmaeus) the olive baboon (Papio anubis) the gorilla (Gorilla gorilla) The evolution of the tetraploid South African clawed toad Xenopus laevis from the diploid tropical toad Xenopus tropicalis (in a single generation) is most likely: the result of a single chromosomal duplication the result of a single chromosomal deletion the result of a single gene duplication the result of a complete genome deletion the result of a complete genome duplication
- 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?Humans and chimpanzees share about 98% of their DNA. What is DNA? What might be the role of regulatory genes in producing the anatomical differences between these two lineages? Give two examples of how the field of genetics has revolutionized biological science. What is polymerase chain reaction (PCR) and why is it important in genetics?A cladogram shows the evolutionary relationship between humans, chimpanzees, and gorillas. The cladogram currently shows humans and chimpanzees with a more recent common ancestor compared to gorillas. Which piece of evidence, if true, would most likely weaken this hypothesis? Amino acid analysis of the cytochrome shows significant differences in the sequence of amino acids between humans and goriffas. DNA sequence analysis of the hemoglobin alpha gene shows that humans and chimpanzees have a more similar sequence to each other than they do to the gorilla's DNA sequence. The cells of the eye in embryos of gorillas and humans follow a similar pattern of development chimpanzee embryos are different Fossils of humans appear in deeper sedimentary rock layers compared to fossils of chimpanzees.
- Black lava rocks only appeared in the desert about 1000 years ago. If the first dark-colored rock pocket mouse had a 10% advantage, about how long would it have taken for nearly all of them to have dark-colored fur? Select an answer and submit. For keyboard navigation, use the up/down arrow keys to select an answer. a 10,000 years. 1000 years. 100 years. It depends on how fast new mutations occur. This cannot be estimated because evolution is random. FullscreenFossils of an extinct giant sloth were found to be similar to a smaller species of sloth presently inhabiting the same region. This similarity could be best explained on the basis of which of the following? * Modern forms have evolved from earlier forms Independent assortment no answer Principle of use and disuse Inheritance of acquired traits Which of the following organisms is most closely related to each other? * MITOCHONDRIAL DNA CODES Organism DNA Codes American black bear ATT GGA GCA GÁC TIA Giant panda ATT GGC AСТ ААТ СТА Red panda АTT GGA AСТ ААС СТ Raccoon АТC GGA TсТ ААС СТ American black bear and giant panda Red panda and raccoon no answer Giant panda and red panda O Raccoon and American black bearA group of researchers are trying to determine the relationship between various groups of organisms. The researchers analyze the amino acid sequence of the protein cytochrome c in various groups of organisms. Once they sequence cytochrome c in all organisms, they determine the number of amino acid substitutions in each group. The results can be seen in the graph below, which plots the data with respect to the time since the divergence of the members of paired groups from a common ancestor. A B mammals and reptiles с Number of Amino Acid Substitutions (per 100 amino acids) in Cytochrome, c D 60- 50+ 40+ 30- 20+ 10+ 0 0 O birds and reptiles A graph showing when various groups of organisms diverged from a common ancestor Based on the graph above, can you conclude which of the following organisms are most distantly related? 200 400 600 800 1,000 Time Since Divergence from a Common Ancestor (millions of years) fish and land vertebrates mammals and reptiles birds and mammals insects and…
- or DNA/Genetic Definition: DNA/Genetic evidence for evolution is.. How evidence supports evolution: This evidence shows that living things change over time (evolution) because... Real-World Example: An animal that you can see this evidence for evolution in is... Picture/DiagramMost fish species are considered cold-blooded because they can't generate body heat like birds and mammals. Billfishes and Tunas are notable exceptions. These fish can generate significant amount of body heat and are thus considered warm-blooded. The tree below shows the relationship among several species of fish including billfishes and tunas. The triangles show the inferred origins of "warm-blood" in billfishes and tunas. Knowing that the most recent common ancestor of all the fish in the tree was cold-blooded and that all the fishes in the tree except tunas and billfishes are cold-blooded, what can be said?Whales and sharks both have dorsal fins which keep them stable while swimming through the water. This feature is very similar in both groups, despite them being only distantly related. The feature evolved independently in both groups. This is an example of a/an: Analagous structure Parallel evolution Homologous structure Preadaptation