Consider Lamarck’s idea in a hypothetical situation. For example, you decided that when you have children, you want them to be big ang strong. You decided to go to the gym every day for a year. You did all your exercise routines diligently and you were able to develop really bulky and toned
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Consider Lamarck’s idea in a hypothetical situation. For example, you decided that when you have children, you want them to be big ang strong. You decided to go to the gym every day for a year. You did all your exercise routines diligently and you were able to develop really bulky and toned muscles because you believed that your kids would inherit your big impressive muscles. Do you think this would work? Justify your answer using the concepts you have learned from Genetics, as well as Darwin’s concept of evolution.
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- Darwin was not the first to propose a mechanism for evolution. Lamarck proposed “acquired inheritance” in which individuals inherit those traits acquired in the lifetime of their parents (e.g., long necks). Compare Lamark’s mechanism to Darwin’s mechanism for evolution (descent with modification). As part of your answer describe how each theory is similar to the other and how each is different? Finally, Lamarck’s theory can be easily shown to be unworkable (e.g., amputees don’t have babies that are amputees meaning babies don’t inherit the acquired trait). What makes Darwin’s theory workable when compared to Lamarck’s unworkable theory.What Darwin Never Knew. Why were humans shocked by the total number of human genes(based on the human genome project) ? What is a “genetic switch” in DNA? How is it important to evolution of new species? Give an example of how a genetic switch alters the physical appearance of an organism. What makes all the difference in the shape of the finch beaks?In the book, Jurassic Park, by Michael Crichton, scientists are able to reconstruct dinosaurs by getting dinosaur DNA from a mosquito that had been well-preserved in amber since the era of dinosaurs. Do you believe this can actually happen in real life? Why?
- In 1973, biologist Theodosius Dobzhansky wrote an essay titled “Nothing in Biology Makes Sense Except in the Light of Evolution.” Why is evolution so important for understanding biology? Explain your answer in 1–2 sentences.The concepts of natural selection and evolution are central to how most biologists understand and interpret the world, and yet the theory of evolution is contrary to the beliefs of many religious groups. Why do you think this theory is so important to science and so strongly opposed by others? What evidence would be required to convince opponents of evolution?Honey possums lick nectar from flowers using a long tongue made of soft muscle. Butterflies lick nectar from flowers using a long tongue made of hard protein. What type of evidence is this? Why is this evidence of evolution?
- Science fiction movies have been known to sketch out a world of the near-future where terrible things have happened such as the evolution of antibiotic resistance in flesh-eating bacteria. What might we reasonably say about this topic? (Select all that apply) A - While one can have fun with entertaining stories about evolution (including ones that are very plausible), this is not a good reason to fund research on antibiotics because that is a solved medical problem. B - It has already happened with some early antibiotics (like penicillin)-the only reason we are momentarily okay is the continued development of additional antibiotics. C - In principle, it is possible but evolution takes millions of years, so don't expect it in the near-future. D - The bodies of humans have evolved since the discovery of antibiotics such that they are less and less effective already. E - We shouldn't find antibiotic resistance to be evidence for evolution because it is only a science-fiction story: it…Humans in the 21st century use their thumbs extensively to operate touchscreens on cellphones. Imagine a scenario, where the human population evolves to have more dexterous thumbs over the next 300 years. Which of the following is a Lamarckian explanation for this evolutionary change (and, therefore, would an incorrect evolutionary mechanism?) humans that develop more dexterity in their thumb over their lifetime due to frequent use of cellphones pass that ability to their children humans that were born with a mutation for more dexterous thumbs have more children thumb dexterity is a dominant traitEVOLUTION LINK Write short paragraphs explaining each of the following statements: (a) Natural selection chooses from among the individuals in a population those most suited to current environmental conditions. It does not guarantee survival under future conditions. (b) Individuals do not evolve, but populations do. (c) The organisms that exist today do so because their ancestors had traits that allowed them and their offspring to thrive. (d) At the molecular level, evolution can take place by the replacement of one nucleotide by another. (e) Evolution is said to have occurred within a population when measurable genetic changes are detected.
- Evolution is based on which of the following concepts? (a) organisms share a common origin (b) over time, organisms have diverged from a common ancestor (c) an animals body parts can change over its lifetime, and these acquired changes are passed to the next generation (d) a and b (e) a, b, and cImagine that some lizards from both islands are brought to a laboratory and lizards from each population are separately bred for a generation. The offspring resemble their parents (i.e. they look like lizards from their home island). Does this support or contradict the idea that evolution has occurred? Group of answer choices a. support because it implies that a genetic change has occurred b. contradict because the lizards were removed from the islands c. support because the phenotype matches the environment d. contradict because the environment is different in the lab e. support because it is a major change in phenotypeEvolution by natural selection is founded on what basic idea? Random genetic mutations that help a species survive will be more likely to be passed to future generations. Only traits that will help an individual organism survive will be passed down to future generations. Only the biggest, strongest, fastest, or smartest creatures survive. Traits that animals acquire over their life will be taught to future generations.