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

Terminology cell division andgeneticswrite short

Terminology Cell Division andGenetics Write short definitions for each ( 1 or 2 sentences ) Sexual reproduction- Asexual reproduction- Centromere- Metacentric- Submetacentric- Telocentric- Chromatids- Karyotype- Centriol ...

Lion can you please describe some adaptations that that

Lion: can you please describe some adaptations that that species developed that allow them to survive in their native habitat?

Imagine that you had 11000 of the worlds gross domestic

Imagine that you had 1/1000 of the worlds gross domestic product available at your disposal for conservation biology product? Is it a sound conservation decision to protect just 4% of the earth's living habitat? Why or w ...

Identify the waveforms in a normal electrocardiogram ecg

Identify the waveforms in a normal electrocardiogram (ECG), and relatethe ECG waveforms to atrial and ventricular depolarization andrepolarization and to the activity of the conduction system.

Blood typingintroductionblood typing is critical in

Blood Typing Introduction Blood typing is critical in medicine. If a person receives the wrong type of blood, they can die. The purpose of this virtual lab is to allow you to simulate determining the blood type of three ...

As we get older we are prone to many conditions that affect

As we get older we are prone to many conditions that affect our bones, muscles and nerves. In your opinion how can these conditions be prevented?

Clearly explain why health outcome is so much more than a

Clearly explain why health outcome is so much more than a combination of health care, individual behaviors, and/or genetics?

The a and b loci are 10 cm apart a plant with a genotype

The A and B loci are 10 cM apart. A plant with a genotype aaBB is crossed to plant with a genotype of AAbb. If an F1 plant is self pollinated, what proportion of the progeny will be homozygous dominant or homozygous rece ...

Imagine two parents are both heterozygous for two autosomal

Imagine two parents are both heterozygous for two autosomal genes. Assuming independent assortment, what proportion of their offspring are expected to have the same phenotype (for these two traits) as the parents? A) 0.2 ...

Microbiology1 for what specific purpose was gram staining

Microbiology 1. For what specific purpose was gram staining developed for? what is it used for today? 2. Why is the presence of air bubbles a sign of contamination? 3. Why is a gram stain helpful when monitoring bacteria ...

  • 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

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

Describe what you learned about the impact of economic

Describe what you learned about the impact of economic, social, and demographic trends affecting the US labor environmen