After reading the following prompt, propose a scientific study to determine whether or not evolution is...

After reading the following prompt, propose a scientific study to determine whether or not evolution is occurring. In your answer, include the type of data you will need to collect, and the calculations you will use to figure out if the mechanism at work is natural selection or genetic drift. Is this population genetics research or quantitative genetics research?

Case #2: In elephants, trunks comes in a variety of lengths such that this trait exhibits a continuously variable phenotype: long, short, and everything in between. The size of an elephant’s trunk is determined by several genes, but it can also be influenced by environmental factors. The average trunk length in a population of elephants 20 years ago was 1.4 meters.

Solutions

Expert Solution

Since the trunk size is not of defined proportions ,most probably it's the action of quantitative inheritance. So there must be multiple genes affecting the size of the trunks. It can also be influenced by environmental factors. For determining whether it's the action of natural selection or genetic drift we must understand these terms.

Natural selection- It's the selection of a particular type of trunk due to reproductive success.

Genetic drift- It's the selection of a particular type of of trunk just by chance.

So in order to prove the selection of trunk is by natural selection we have to collect the data correlating trunk size and mating success along with mate choice. If according to the data there is a relationship between trunk size and mating success then it must be a natural selection.

However it is also given that the trunk size is also dependent on environmental factors . So we have to collect data from. Different environments and correlate with the trunk size. There may be a natural calamity that might have selected a particular trunk size randomly confined to that particular area which doesn't have any correlation with reproductive success. In that case it would result in genetic drift. So if there is no data correlated to mate success but there is selection of a particular trunk size confined to an area,that is the result of genetic drift.

Give a thumbs up if you like the answer. Thank you

gladiator answered 3 weeks ago

Next > < Previous

Related Solutions

Explain what is scientific about the study of evolution. ( HintThink about the definition of evolution...

Explain what is scientific about the study of evolution. ( HintThink about the definition of evolution and how you would apply the steps of the scientific method .)

PROMPT: After reading the poem, "One Today" by Richard Blanco, explain how the poem is a...

PROMPT: After reading the poem, "One Today" by Richard Blanco, explain how the poem is a celebration of the "American Experience" and discuss whether you believe this work is still relevant in 2020.

Use the following information for questions in Problem 3: After reading a demographic study on the...

Use the following information for questions in Problem 3: After reading a demographic study on the habits and modern lifestyles of the American public, TI Inc. decided launching a new product, Gizmo ™. TI’s CEO has asked you to determine whether or not to go ahead with the introduction of a new product. You have the following information: • Most of the numbers for your estimates come from a study by marketing consultant that you received two months ago. The...

answer the following question after reading this case study 0.Define the Vision? 1.Plan the Project?

answer the following question after reading this case study0.Define the Vision?1.Plan the Project?Sub-Task 1.1: Divide the system into at least two separate components or subsystems, which can be supported with two iterations. Briefly describe each.Sub-task 1-2: Create a work breakdown structure that lists all the steps to complete the first iteration. Put a time estimate on each step. 2.Define and understand the Requirements?Sub-task 2-1: Create a simple use case diagram from the list of use cases.Sub-task 2-2: Create a simple...

Your Tasks: After reading the case study, answer the following questions: Describe in your own words...

Your Tasks: After reading the case study, answer the following questions: Describe in your own words the meaning with examples of the following terms:- - Unconscious Bias - Stereotyping, Prejudice and Discrimination. (10 marks – 150 words) Identify TWO theories that you have learned in this unit and then relate their relevance and applicability to the given case study. (5 marks – 200 words) Here the date, take two theories from it http://www.mediafire.com/file/vop79sq3pquzgyb/Lecture+5.pptx/file Based on your understanding of the case...

After reading a demographic study on the habits and modern lifestyles of the American public, TI...

After reading a demographic study on the habits and modern lifestyles of the American public, TI Inc. decided launching a new product, Gizmo ™. TI’s CEO has asked you to determine whether or not to go ahead with the introduction of a new product. You have the following information: · Most of the numbers for your estimates come from a study by marketing consultant that you received two months ago. The consulting fee was $80,000. · You will locate...

After reading a demographic study on the habits and modern lifestyles of the American public, TI...

After reading a demographic study on the habits and modern lifestyles of the American public, TI Inc. decided launching a new product, Gizmo ™. TI’s CEO has asked you to determine whether or not to go ahead with the introduction of a new product. You have the following information: • Most of the numbers for your estimates come from a study by marketing consultant that you received two months ago. The consulting fee was $80,000. • You will locate the...

Determine whether the following are examples of theoretical probability, subjective probability, or relative frequency. a) After...

Determine whether the following are examples of theoretical probability, subjective probability, or relative frequency. a) After taking the exam you believe there is a 90% chance that you passed. b) Last month the bus was on time 70% of the time so you believe that there is a 70% chance that the bus will be on time today. c) Your friend tells you her job interview went well and she believes there is a 75% chance that she will get...

After reading this case study, complete the exercises following: Mr. T.Y. is a 51-year-old Caucasian male...

After reading this case study, complete the exercises following: Mr. T.Y. is a 51-year-old Caucasian male scheduled for cardiac catheterization. His risk factors for heart disease are prior congestive heart disease, transient ischemic attack involving left arm, former prolonged tobacco use, a diet high in saturated fat, hyperlipidemia, obesity, hypertension, and poorly controlled diabetes. He made some attempts at risk reduction, stopping smoking two years ago and losing 40 pounds. However, he currently enjoys eating red meat at least twice...

After this week’s reading and discussion, share in a journal assignment whether and how your view...

After this week’s reading and discussion, share in a journal assignment whether and how your view of the organization reviewed within the Module One discussion forum changed. Are you able to better identify benefits among certain organizational theories? Explain the theory and the specific benefit(s) (e.g., employee satisfaction, diversity, etc.). Examine the internal and external culture through the lens of behavioral indicators, and offer suggestions to increase organizational results my Disscussion I would like to discuss Whole Foods Market for...

Subjects