'Weinberg equilibrium' presentation slideshows

Mendelian Genetics in Populations: Selection and Mutation as Mechanisms of Evolution

Mendelian Genetics in Populations: Selection and Mutation as Mechanisms of Evolution. Motivation Can natural selection change allele frequencies and if so, how quickly???. With the neo Darwinian synthesis: Evolution = change of allele frequencies.

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Section 3 Characterizing Genetic Diversity: Single Loci

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Chapter 16: Population Genetics and Evolution

Chapter 16: Population Genetics and Evolution. Robert E. Ricklefs The Economy of Nature, Fifth Edition. Background: Molecular Basis for Genetic Variation. Genetic information is encoded by DNA . Genetic variation is caused by changes in the nucleotide sequence of DNA.

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Population Genetics

Population Genetics. Evolution depends upon mutation to create new alleles. Evolution occurs as a result of allele frequency changes within/among populations. What evolutionary forces alter allele frequencies?. How do allele frequencies change in a population from generation

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Chapter 12

Chapter 12. When Allele Frequencies Stay the Same. Population Genetics. Branch of genetics that considers not individuals or families, but ALL of the alleles in a population. Gene Pool. Gene Flow. 12.1 Importance of Knowing Allele Frequencies.

433 views • 32 slides

DNA Forensic Analysis

DNA Forensic Analysis. Harry R Erwin, PhD CIS308 Faculty of Applied Sciences University of Sunderland. Topics. Introduction DNA structure and the genome DNA handling procedures PCR The use of short tandem repeat data DNA statistics and evidence DNA databases Other markers.

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How Populations Evolve

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Probability: The Foundation of Inferential Statistics

Probability: The Foundation of Inferential Statistics. October 14, 2009. Subjective Probability. Throughout the course I have used the word probability. Yet I have not defined it. Instead I have relied on the assumption that you all have a sense of probability.

584 views • 29 slides

Genetic drift

Genetic drift. Guest lecture by Kim van der Linde. Hardy-Weinberg equilibrium. Infinite populations Gene frequencies remains constant over generations What if populations are finite? Sampling error. Genetic drift versus natural selection. Selection: fitness of alleles differs

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Take Out The Following Labs

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10/10 Daily Catalyst

10/10 Daily Catalyst. 1. Define allele frequency? 2. What causes evolution? 3. What is effected more by changes in allele frequencies?. 10/10 Daily Catalyst Answers. 1. Define allele frequency? How ofte n alleles appear in the population 2. What causes evolution?

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Changes to Allele Frequencies

Changes to Allele Frequencies. And the consequences. The Gene Pool. The total collection of genes in a population at any one time. Allele Frequencies in a Gene Pool.

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POPULATION GENETICS

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DAY 4

DAY 4. The Hardy-Weinberg Equilibrium. The Hardy-Weinberg law states that the frequencies of alleles in a population will remain constant unless acted upon by outside agents or forces. In other words, the proportion of dominant to recessive genes remains the same.

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Chapter 17

Chapter 17 . Microevolutionary Process. Where we left off. Darwin had come up with a mechanism for evolution called natural selection. It seemed to explain what had happened over long periods of time, based on the fossil evidence

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Lab 12. Linkage Disequilibrium

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Agenda

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Types of Natural Selection

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The Hardy-Weinberg Equilibrium

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Hardy-Weinberg Problems

Hardy-Weinberg Problems. Problems 1, 2 and 4 from http://nhscience.lonestar.edu/biol/hwe.html Problem 3 from http://science.kennesaw.edu/~rmatson/Biol%203380/PROBLEMS.html. Hardy-Weinberg Problems. 1. Scientists observe that 9% of an African population is born with sickle-cell anemia (ss).

788 views • 8 slides