'Heritable variation' diaporamas de présentation

Genes and Variation

Genes and Variation. This group of ladybug beetles illustrates a population with a number of inherited traits Darwin recognized such variations as the raw material for evolution. Genes and Variation. Genes and Variation.

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Warm Up

Warm Up. With your partner, write a sentence (20 words or less) using two of the following terms to show your knowledge of genetic engineering: * Transgenic Organisms, Recombinant DNA, Recombinant Bacteria, Selective Breeding, PCR, Gel Electrophoresis, Genetically Modified. Changes Over Time.

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RNA ..the fourth dimension in evolution....

530 views • 33 slides

Chapter 20 Evolution of Genes and Traits

Chapter 20 Evolution of Genes and Traits. Darwinian evolution, mutations and molecular evolution, a case study in natural selection, morphological evolution; the origin of new genes and protein functions. Major principles of Darwinian evolution.

738 views • 29 slides

Chapter 20 Evolution of Genes and Traits

Chapter 20 Evolution of Genes and Traits. Darwinian evolution, mutations and molecular evolution, a case study in natural selection, morphological evolution; the origin of new genes and protein functions. Major principles of Darwinian evolution.

488 views • 29 slides

chapter 22: descent with modification chapter 25.2 & 3 & 4 : history of life on earth

Unit 1: Evolution. chapter 22: descent with modification chapter 25.2 & 3 & 4 : history of life on earth chapter 23: evolution of populations chapter 24 and 25.6 : origin of species chapter 26.1 and 26.3: phylogeny. Chapter 23: Evolution of Populations. Individual birds do not change in

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Evolution of Biological Communities

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ORIGIN OF SPECIES & MODERN THEORY OF EVOLUTION

ORIGIN OF SPECIES & MODERN THEORY OF EVOLUTION. Red Queen Hypothesis (Theory of Natural Selection). The environment is constantly changing Natural selection operates to enable the organisms to maintain their state of adaptation (not to improve it)

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Darwin and His Theory of Evolution by Natural Selection

Darwin and His Theory of Evolution by Natural Selection. Evolution - changes in populations over time Charles Darwin was the first to propose a feasible mechanism for evolution. It is called natural selection. Evolution by Natural Selection is a theory. What is a scientific theory?.

1.58k views • 13 slides