Ask Question, Ask an Expert

+1-415-315-9853

info@mywordsolution.com

Ask Biology Expert

Please read carefully the sections below in your PopGen-manualor online:
1. Background Information
2. Introduction
3. Objectives
4. Before you begin

Answer the following problems: Do several repeats of all experiments to see if the outputs vary by chance, or if it looks stable, after changing different parameters.

Ass. 1: "Getting to know PopGenLab: Testing the Hardy-Weinberg Theorem "

Does each month genotype have an equal chance of survival or is there a selective pressure (positive or negative) on one or more genotypes using default settings? Is there a change in allele and/or genotype frequency over time?

How do the actual genotype frequencies compare to Hardy-Weinberg predictions?

Did the results agree with your predictions (do several experiments to verify)?

Use Chi-square analysis with one degree of freedom to test your prediction.

How many generations does it take for a population to reach Hardy-Weinberg equilibrium?

Can different initial genotype frequencies lead to the same Hardy-Weinberg equilibrium?

Ass. 2: "Genetic Drift" (Here you change the tree stand carrying capacity)

1. Formulate a hypothesis to predict the effect of a decrease in tree stand carrying capacity on allele and genotype frequencies.

2. What happens to allele and genotype frequencies if you change the tree carrying capacity? Do several experiments with several different capacities.

3. What happens to the percentage of heterozygotes? describe these results.

4. What do these experiments tell you about the effect of population size on genetic variation?

5. Did any of the populations that you studied become extinct? If so, which ones? What can you say about the relationships between carrying capacity and the risk of extinction?

Ass. 3: "The influence of mating patterns on population genetics" (here you change the mating pattern (random, assortative, disassortative)). Set the tree stand number to 100.

1. What is the effect of assortative mating on genotype, allele frequencies and heterozygosity?

2. How do the effects of assortative mating compare to those of genetic drift? Are the effects of assortative mating and the effects of genetic drift the same at different population sizes?

3. What is the effect of disassortative mating?

4. How do assortative and dissassortative mating affect allele frequency?

Ass. 4: "Modes of natural selection" (Here you change the color of the trees, more white trees gives natural selection for white moths). Do several experiments with different percentages of tree colors. Set the tree stand number to 100.

1. What happens to allele frequency in the case of directional selection?

2. What happens to allele frequency in the case of balancing selection?

3. What happens to allele frequency in the case of diversifying selection?

4. Are small differences in fitness effective in changing allele frequencies? Under what mode of selection might genetic variation be maintained?

Biology, Academics

  • Category:- Biology
  • Reference No.:- M944663

Have any Question? 


Related Questions in Biology

You have been asked to investigate a new procedure that

You have been asked to investigate a new procedure that physicians would like nurses to adopt in the hospital. Discuss the process you would apply to determine whether the procedure falls within the RN scope of practice ...

Human biology1where does lymph come from2list the primary

Human Biology 1. Where does lymph come from? 2. List the primary lymphatic organs. List the secondary lymphatic organs. 3. What structures allow the lymph to enter the cardiovascular system? 4. Why is the thymus so criti ...

Biology class must cite work must be 250 wordsyoutube url

Biology class. Must cite work, must be 250 words. YouTube URL: http://www.youtube.com/watch?v=rjza24Oyalc Dieters often talk about their metabolism. What is metabolism? Catabolism? Anabolism? Total metabolic rate (TMR)? ...

Question 1 in drosophila melanogaster eyeless ey is a

Question 1: In Drosophila melanogaster, eyeless (ey) is a recessive trait in which the eyes are tiny or absent. The ey locus is found on chromosome 4. Monosomy and trisomy for this very small chromosome are compatible wi ...

Adaptationlocate a diagram of that organism that has the

ADAPTATION Locate a diagram of that organism that has the main organs and structures labeled. Be sure to properly cite your diagram and pictures. Write a 1,050- to 1,400-word paper on this topic. • Briefly describe the e ...

Cancer is the abnormal unrestricted cell growth caused by

Cancer is the abnormal, unrestricted cell growth caused by damage to genes that regulate cell division. Cancer usually results from a series of mutations within a single cell, sometimes a damaged, or missing p53 gene is ...

Assignmentsimmunology1st assignmentsection ithe following

Assignments Immunology 1st Assignment Section I. The following Topics 1-3 (of 4) cover the cell isolation protocols from Units 1 & 2: Assigned Appendix readings; Isolation of human monocytes by double gradient centrifuga ...

Create a table to compare and contrast the chemical

Create a table to compare and contrast the chemical reactions catalyzed by the following enzymes as well as their mechanisms of action. Your answer should include at least 5 of the following where appropriate: the stereo ...

Biologygo to httpwwwecfrgovwrite again in essayparagraph

Biology Go to: http://www.ecfr.gov/ Write again in essay/paragraph format with the question content incorporated into the sentences and not written separately. 1- Go to Title 40. What is the title of CFR 40? 2- Go to par ...

Ethical decisions in the workplaceafter reading your

Ethical Decisions in the Workplace After reading your background readings, please review the following scenario and address the questions at the end. Jerry Stevens heads up an excavation crew for the municipal utilities ...

  • 4,153,160 Questions Asked
  • 13,132 Experts
  • 2,558,936 Questions Answered

Ask Experts for help!!

Looking for Assignment Help?

Start excelling in your Courses, Get help with Assignment

Write us your full requirement for evaluation and you will receive response within 20 minutes turnaround time.

Ask Now Help with Problems, Get a Best Answer

A cola-dispensing machine is set to dispense 9 ounces of

A cola-dispensing machine is set to dispense 9 ounces of cola per cup, with a standard deviation of 1.0 ounce. The manuf

What is marketingbullwhat is marketing think back to your

What is Marketing? • "What is marketing"? Think back to your impressions before you started this class versus how you

Question -your client david smith runs a small it

QUESTION - Your client, David Smith runs a small IT consulting business specialising in computer software and techno

Inspection of a random sample of 22 aircraft showed that 15

Inspection of a random sample of 22 aircraft showed that 15 needed repairs to fix a wiring problem that might compromise

Effective hrmquestionhow can an effective hrm system help

Effective HRM Question How can an effective HRM system help facilitate the achievement of an organization's strate