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

Elaborate on the basic concepts involved in the regulation

Elaborate on the basic concepts involved in the regulation of fluids and electrolytes. Also, identify the hormones that play important roles in regulating fluid balance and electrolyte balance and describe their effects.

Assume the role of a research scientist who is applying for

Assume the role of a research scientist who is applying for grant money to fund research on ALS. Describe the particular area of research that you would investigate (drug-based therapies that would slow the progression o ...

Should humans restore natural ecosystems disturbed by

Should humans restore natural ecosystems disturbed by natural events, such as a hurricane or volcano? Why? What if a species is likely to go extinct if the ecosystem is not restored? What is an example?

Looking for assistance with the below information regarding

Looking for assistance with the below information regarding alternatives to landfills. References are needed. Alternatives to Landfills The use of sanitary landfills for burial of municipal solid wastes has been the prim ...

In preparation for this assignment please visit each of the

In preparation for this Assignment, please visit each of the following websites to learn about how HIV wreaks havoc on the human immune system. Aids.gov. Overview of HIV Treatments. Retrieved fromhttps://aids.gov/hiv-aid ...

How do gap junctions function with the intercellular

How do gap junctions function with the intercellular diffusion of sodium

1 what are some methods doctors have used to try and

1. What are some methods doctors have used to try and control acupuncture? What factors have helped or hindered them in this attempt? Your response should be at least 75 words in length. 2. Describe the difference that e ...

Please help me with these questions1 describe how sex is

Please Help me with these questions: 1. Describe how sex is determined in humans 2. Describe what sex linkage is and give an example 3. Define dosage compensation. 4. Define nondisjunction and describe a scenario in whic ...

Dolly dolly and more dollyit all started with a sheep named

Dolly, Dolly, and More Dolly It all started with a sheep named Dolly. In the mid-1990s, scientists proved convincingly that after decades of trying, we could, indeed, clone mammals - and even possibly, human beings. Unsu ...

What is the phenotypic ratio that can be used as a

What is the phenotypic ratio that can be used as a hypothesis for a heterozygous dihybrid cross (cross of heterozygotes for two traits) if the traits follow the properties of Mendelian inheritance?

  • 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

WalMart Identification of theory and critical discussion

Drawing on the prescribed text and/or relevant academic literature, produce a paper which discusses the nature of group

Section onea in an atwood machine suppose two objects of

SECTION ONE (a) In an Atwood Machine, suppose two objects of unequal mass are hung vertically over a frictionless

Part 1you work in hr for a company that operates a factory

Part 1: You work in HR for a company that operates a factory manufacturing fiberglass. There are several hundred empl

Details on advanced accounting paperthis paper is intended

DETAILS ON ADVANCED ACCOUNTING PAPER This paper is intended for students to apply the theoretical knowledge around ac

Create a provider database and related reports and queries

Create a provider database and related reports and queries to capture contact information for potential PC component pro