Give typing answer with explanation and conclusion 1) A population of HIV viruses exposed to any single antiretroviral medication typically evolves resistance to this medication within a year or two. In contrast, populations of humans exposed to HIV for many years have not yet evolved significant resistance to HIV infection. Which of the following reasons may explain why evolution has been so much more rapid in HIV populations than in human populations? a) Humans have much longer generation times. b) Humans have reverse transcriptases that are less error prone.

Give typing answer with explanation and conclusion 1) A population of HIV viruses exposed to any single antiretroviral medication typically evolves resistance to this medication within a year or two. In contrast, populations of humans exposed to HIV for many years have not yet evolved significant resistance to HIV infection. Which of the following reasons may explain why evolution has been so much more rapid in HIV populations than in human populations? a) Humans have much longer generation times. b) Humans have reverse transcriptases that are less error prone.

Biology (MindTap Course List)

11th Edition

ISBN:9781337392938

Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Publisher:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg

Chapter19: Evolutionary Change In Populations

Section: Chapter Questions

Problem 15TYU

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The attached image has the following Newick format: ((HIV-1 retropepsin:0.67441,(HIV-2 retropepsin:0.40370, Simian immunodeficiency:0.40370):0.27071):0.963537,(Bovine immunodeficiency:1.34405,Feline immunodeficiency:1.34405):0.295328); Examine the branch lengths. What do they tell you about the evolutionary time between the branch points?• Which branchings are more ancient and which are more recent?• What would you conclude about these immunodeficiency virus proteases, based on this small analysis?
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