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

Identify and give functions of the organs and structures of

Identify and give functions of the organs and structures of the urinary system.

Which type of reproduction occurs through the formation of

Which type of reproduction occurs through the formation of different types of spores in favourable and unfavourable conditions by division of the protoplast

State without explanation any three common features

state without explanation, any three common features regarding reptiles, birds and mammals.

Bacterial cells have only one dna molecule which is double

Bacterial cells have only one DNA molecule, which is double stranded and is replicated in essentially the same fashion as in eukaryotes. Imagine that, following the techniques of other scientists studying DNA, you create ...

You have just cloned a gene from cucumber that when mutated

You have just cloned a gene from cucumber that, when mutated, causes pale green instead of green seedling in cucumber. You want to clone out the orthologous gene (this means the same gene) from Arabidopsis and find out i ...

Genes a b and c assort independently if a plant with the

Genes A, B, and C assort independently. If a plant with the genotype AabbCc is crossed to another plant with the genotype AABbCc, what proportion of the progeny will be AabbCC?

Describe two relic structures in mans anatomy that reflect

Describe two relic structures in man's anatomy that reflect our common evolution history with animals.

What are the effects of childhood obesity research

What are the effects of childhood obesity? Research intensively on the effects of obesity, to the individual and society and possible solutions. Font 12, apa, atleast three references

What are the ingredients in gatorade how does it provide

What are the ingredients in Gatorade how does it provide energy? In your opinion, should a person use this drink or supplement on a regular basis? Why or why not?

What type of reproduction involves union of sex cells and

What type of reproduction involves union of sex cells and their nuclei?

  • 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