Black lava rocks only appeared in the desert about 1000 years ago. If the first dark-colored rock pocket mouse ha 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.

Black lava rocks only appeared in the desert about 1000 years ago. If the first dark-colored rock pocket mouse ha 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.

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Description: Black lava rocks only appeared in the desert about 1000 years ago. If the first dark-colored rock pocket mouse had a10% advantage, about how long would it have taken for nearly all of them to have dark-colored fur?Select an answer and submit. For ke

Human Heredity: Principles and Issues (MindTap Course List)

11th Edition

ISBN:9781305251052

Author:Michael Cummings

Publisher:Michael Cummings

Chapter16: Reproductive Technology, Genetic Testing, And Gene Therapy

Section: Chapter Questions

Problem 14QP: Is gene transfer a form of eugenics? Is it advantageous to use gene transfer to eliminate some...

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Imagine a population of mice living in a grey, rocky environment. Some mice are grey and some are brown. If natural selection occurs in this population, what would you expect to see if you returned in 100 mouse generations? Describe what you'd see in terms of fur colors in the population. Imagine a population of mice living in a grey, rocky environment. Some mice are grey and some are brown. If mutations occur in this population, what could you see if you returned in 100 mouse generations, that would tell you mutations had occurred? Describe what you'd see in terms of fur colors in the population, and how it would be different from what you'd see in #2.
The raw material for evolution is random mutation. Discuss whether or not you view evolution as a random process.
The image below shows how the Pokemon Charmeleon evolves into Charizard over generations. Pokemon fight battles in order to evolve into stronger Pokemon. When Charmeleon (on the left) wins enough battles, they evolve into Charizard shown on the right. If they don't defeat other pokemon they will stay in the form on the left. Explain why this fictional process is not a realistic representation of evolution. Refer to commonly held misconceptions as well as criteria for evolution by natural selection in your answer.
You are collaborating with a cool new local brewery on an experiment with one of their strains Saccharomyces cerevisiae, brewer’s yeast. You decide to apply what you learned in Evolution to create a mutation accumulation (MA) line to see if the patterns of mutation in their strain of S. cerevisiae follow patterns seen in other species. Which of the following best describes an actual result you observe form studying the mutation accumulation (MA) lines you created? a. Beneficial mutations occur far less frequently than deleterious mutations do. b. The neutral mutations had a greater effect on fitness compared to other mutation types. c. Most of the mutations that occur are the result of large chromosomal rearrangements. d. Of all possible mutation types, deleterious mutations are the most common mutation.
In the replica plate experiment, it shows that mutations are random. However, certain environmental stresses (such as high temperature, high salt, and low pH) can increase the mutation rate. QUESTIONS: Does increasing the mutation rate increase the probability that an individual mutation will be adaptive?
How might an evolutionary biologist explain why a species of salamander becomes blind after colonizing a cave? Group of answer choices Members of the ancestral population that colonized the cave differed in their ability to see. If maintaining the ability to see in the cave was a waste of energy, blind salamanders might actually have more offspring than those who could see. It is possible that in the cave there is a source of pollution that increases the mutation rate for a gene that makes salamanders blind. Over time, due to exposure to this chemical, the membersof the population lose their sight. There is no way to explain this in terms of natural selection. The members of this salamander species no longer needed to use their eyes. Over time, due to lack of use, they lost the ability to see.
The dog breed West Highland Terrier is a product of artificial selection. Give a brief description of the breed and its desired traits. What wild ancestor did it come from? Was it produced with selective breeding or genetic engineering (i.e. genetically modified)? What are the benefits of artificial selection in this case? Are there potential negative consequences?
In the year 2374, humans finally developed the technology necessary for time travel. You are a scientist interested in the population genetics of extinct animals. Taking advantage of this technology advance, you decide to travel back 8 million years to conduct field work in Venezuela. You are studying a population of Phoberomys pattersoni, the world’s largest extinct rodent weighing approximately 700 kg (1500 lbs) and looking vaguely like a giant guinea pig. The coat color of this rodent varies between tan (dominant) and brown (recessive). Assume the population is in Hardy-Weinberg equilibrium. You observed 336 tan Phoberomys and 64 brown Phoberomys during your study. What is the frequency of the homozygous recessive genotype? ________________ What is the allelic frequency of the dominant (tan) allele in the population? ___________ Of the animals you observed, how many were heterozygous? _______________ As you observe the animals you count 200 brown and 450 tan. Conduct a…
"Mutations propose and natural selection disposes," is a short way of describing how species change over time. How does this relate to evolution? Use the editor to format your answer
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.…
Background: In class we did a project about m and m’s and there ability to evolve and natural selection. (Yes I know they can’t actually evolve it was just used as a example in class) however I can’t figure out this question. Occasionally a mutant may occur and produce a candy that is misshapen or Pointier or flatter than the rest. Often this proves to be a weakness, but a rare mutation may confer extra M&M durability. Other mutations in M&Ms could occur ( like ones that result in a new color). A mutant un you population represents a new _________. What goes in the blank
You conduct an exercise in the Darwinian Snails Sim-U-Text lab. You simulate conditions under which survival of snails is selective-that is, snails with thicker shells are less likely to be preyed on by crabs than snails with thinner shells. The default settings also ensure the trait is heritable, and the population has variation in this trait. You allow mutations to occur. As you run the simulation, you observe that the mean shell thickness of the population increases over successive snail generations. Have you successfully simulated natural selection? No, because no snails appeared with thicker shells than the thickest shells observed in the initial population O Yes, because crabs preyed on the snails O No, because you cannot have selection with mutations operating No, because the changes in shell thickness could have been due to genetic drift O Yes, because there was a change in the mean shell thickness Yes, because there were mutations