'Gene pool' presentation slideshows

The Evolution of Populations

The Evolution of Populations. 0. 21. Overview: The Smallest Unit of Evolution. One common misconception is that organisms evolve during their lifetimes Natural selection acts on individuals, but only populations evolve

1.47k views • 108 slides

15-3 Shaping Evolutionary Theory:

15-3 Shaping Evolutionary Theory:. Georgia Performance Standards: SB5b: Explain the history of life in terms of biodiversity, ancestry, and the rates of evolution. SB5d: Relate natural selection to changes in organisms. Essential Questions:

732 views • 60 slides

Conservation Genetics

Conservation Genetics. Why should we be concerned with genetic diversity when more severe threats threaten entire systems? First , the rate of evolutionary change in a population is proportional to the amount of genetic diversity available Fundamental Theorem of Natural Selection.

1.42k views • 55 slides

AP Biology

AP Biology. Lab Review. Lab 1: Diffusion & Osmosis. Lab 1: Diffusion & Osmosis. Description dialysis tubing filled with starch-glucose solution in beaker filled with KI solution potato cores in sucrose solutions. Lab 1: Diffusion & Osmosis. Concepts semi-permeable membrane diffusion

571 views • 47 slides

The Origin of Species

The Origin of Species. Patterns of Speciation. Fossil record indicates two patterns: anagenesis (phyletic evolution) - an unbranched lineage cladogenesis -branching evolution most commot form promotes greater diversity by increasing the number of species. Patterns of Speciation.

706 views • 38 slides

Class 5: Drivers and Causes of GCC

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Darwin vs. Lamarck

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Pesticides & Waste Ch 22 & 23

Pesticides & Waste Ch 22 & 23. PEST = any organism that interferes in some way with human welfare or activities. PESTICIDE = toxic chemicals used to reduce the size of and control the pest population. Grouped by their target organism Insecticide , Herbicide , Fungicide , Rodenticide

615 views • 30 slides

Speciation

478 views • 26 slides

Mechanisms of Evolution

Mechanisms of Evolution. Concept 4: Analyzing the evolution of populations through Hardy-Weinberg (microevolution) Chapter 23 in Campbell, pg 155-158 in Holtzclaw. Goal: To analyze how populations change over time . The Evolution of Populations. You must know:

377 views • 21 slides

420 views • 21 slides

Unit 5 Evolution

Unit 5 Evolution. Ch. 16 Evolution of Populations. Sources of Genetic Variation. The 2 main sources of genetic variation are mutations & the genetic shuffling that results from sexual reproduction. Single-Gene & Polygenic Traits.

344 views • 19 slides

Population Genetics & Evolution

Population Genetics & Evolution. Population Genetics & Evolution. Individuals do not evolve but populations do. Genetic Equilibrium. Occurs when the frequency of alleles remains the same over generations within a population. Genetic Equilibrium. Gene pool - All of the alleles of a

383 views • 17 slides

Measuring Evolution of Populations

Measuring Evolution of Populations. 5 Agents of evolutionary change. Mutation. Gene Flow. Non-random mating. Genetic Drift. Selection. Populations & gene pools. Concepts a population is a localized group of interbreeding individuals

394 views • 15 slides

Gene and Chromosomal Mutations

585 views • 15 slides

MECHANISMS FOR EVOLUTION

MECHANISMS FOR EVOLUTION. CHAPTER 23. Objectives State the Hardy-Weinburg theorem Write the Hardy-Weinburg equation and be able to use it to calculate allele and genotype frequencies List the conditions that must be met to maintain Hardy Weinburg equilibrium. POPULATION SPECIES GENE POOL

586 views • 14 slides

Evolution Essays

271 views • 14 slides

EVOLUTION

EVOLUTION. SBI3U Ms. Papaiconomou & Ms. Lorenowicz. What is Evolution?. Evolution is the relative change in the characteristics of populations that occurs over successive generations. Diversity of Life. Diversity is the cornerstone of evolutionary biology

305 views • 10 slides

Animal Behavior

394 views • 10 slides

DNA

259 views • 9 slides