'Allele frequencies' presentation slideshows

Chapter 7: Evolution at multiple loci

Chapter 7: Evolution at multiple loci. Evolution at two loci: Linkage equilibrium and linkage disequilibrium. Locus is location on a chromosome where a gene occurs. Single locus Hardy-Weinberg models are simple. However, many traits are controlled by combined influence of many genes.

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Applied research in human genetics

Applied research in human genetics. Weibin Shi Michele Sale. The central focus of human genetics research:. Identification of genes that cause disease. Which polymorphisms in Which genes in Which individuals Exposed to which environmental factors Increase risk of developing disease?.

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Evolution Lecture 6 : Variation Among Individuals (Chapter 5)

Evolution Lecture 6 : Variation Among Individuals (Chapter 5). Variation. Genetic variation among individuals in populations is obvious (just look around this room!) But we often overlook variation in other organisms (even though it is often greater). Figure 5-1.

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Microevolution

Microevolution. Chapter 16. Selective Breeding & Evolution. Evolution is genetic change in a line of descent through successive generations Selective breeding practices yield evidence that heritable changes do occur. Domestication of Dogs. Began about 50,000 years ago

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Mechanisms of Evolution

Mechanisms of Evolution. CSCOPE Unit : 09 Lesson: 01. Scientific Definitions Analysis:. Be prepared to share your response to the following: Biological evolution happens at the __________ level, not the individual organism level.

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Chapter 17

Chapter 17. Population Genetics. 8 and 11 April, 2005. Genes in natural populations. Overview. Populations contain a great deal of genetic variation. If no forces act to change gene frequencies, equilibrium is reached in one generation of random mating.

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Evolution

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Detecting selection using genome scans

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Exam Question #1

Exam Question #1. Gene flow and genetic differentiation. In this population, selection favors the AA genotype by 10%. This population is composed of only 20 individuals. Gene flow, differentiation and speciation. Outline. Aa. Aa. Aa. Aa. Aa. Gene flow in isolation

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15.2 Species and Speciation Overview

15.2 Species and Speciation Overview. Evolution Results of evolution New species (speciation) Causes of evolution Barriers between same species (gene pools) Geographical isolation -> leads to allopatric speciation Temporal isolation -> leads to sympatric speciation

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Unit 9 Vocabulary

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Enjoy your journey!

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Principles of Evolution

Principles of Evolution. How Did Evolutionary Thought Evolve? Early biological thought did not include the concept of evolution. Exploration of new lands revealed a staggering diversity of life. Fossil discoveries showed that life had changed over Time.

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16-1 Genes and Variation

16-1 Genes and Variation. Explain what a gene pool is. Identify the main sources of inheritable variation in a population. State what determines how a phenotype is expressed. How Common Is Genetic Variation?. Many genes have at least two forms, or alleles .

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Evolution as genetic change 16-2 (Types of Selection)

Evolution as genetic change 16-2 (Types of Selection). Natural selection on single-gene traits can lead to changes in allele frequencies and thus to evolution. Organisms of one color, for example, may produce fewer offspring than organisms of other colors.

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Taxonomies and Laws

Taxonomies and Laws. Lecture 10. Taxonomies and Laws. Taxonomies enumerate scientifically relevant classes and organize them into a hierarchical structure, such as. living organisms, psychological disorders, and elementary particles.

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Chapter 14 Microevolution in Modern Human Populations

Chapter 14 Microevolution in Modern Human Populations. Human Populations Population Genetics Evolution in Action: Modern Human Populations Human Polymorphisms Human Bicultural Evolution. Population Genetics.

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