Microevolution - Changes in the genes of populations

Slides:

Advertisements

Similar presentations

Bellwork Imagine that you are traveling in Madagascar when you find the plant to the left. You see that the plant has an unusually large spur containing.

Advertisements

IV. The Process of Evolution A. Two types of evolution

Evolution of Populations

Milosz Szymoniak Arelis Diaz Tiffany Lavallee Chapter 9.

Patterns In Evolution. Two Major Patterns Observed.

EVOLUTION.  Students know and understand the characteristics and structure of living things, the processes of life, and how living things interact with.

Chapter 19.2 (Pgs ): Patterns and Processes of Evolution

The Mechanisms of Evolution Essential Question: How does evolution occur beyond Natural Selection?

Patterns of Natural Selection Sec Natural Selection and Genetics Natural selection never acts on a gene –It acts on the organism as a whole (the.

Speciation Through Isolation Student Self Assessment 1. I barely know what the subject is. I need significant help. 2. I think I’m starting to get.

Monday, April 7 th Genetics of Populations. Population Genetics Vocab Population: A localized group of individuals belonging to the same species Species:

Genetic Variability B-5.4. Genetic Variability Genetic variation is random and ensures that each new generation results in individuals with unique gentoypes.

Population GENETICS.

Darwin’s Theory of Evolution as a Mechanistic Process Darwin’s Idea of Common Descent Darwin’s Idea of Common Descent Darwin’s Idea of Gradualism Darwin’s.

II.Theories of Evolution A. Development of Theories.

I got nothin’ witty. Evolutionary Theory. How evolution takes place BIG IDEA: The theory of evolution is constantly changed as new evidence is discovered.

Beyond Darwin 16.3 and some 17 Notes Can an individual evolve? Is evolution the survival of the fittest? Is evolution predictable?

SHAPING EVOLUTIONARY THEORY SECTION 15.3 Mrs. Pachuta.

D3: Thursday, 12/19 Tahlia collected data for the bluejay population this summer. She calculated the allele frequencies for a certain gene (toe length).

The Formation of New Species. Isolation of Subpops  Mechanisms of evolution cause isolated subpops to diverge.

Ch. 16 Evolution of Populations

Section 3: Beyond Darwinian Theory

Evolutionary Mechanisms Chapter 15 Pages

Chapter 11 Jeopardy Genetic Variation & Natural Selection.

Mechanisms of Evolution 16.1 Causes of microevolution.

Evolution and Population GENETICS

Chapter 16 GENES AND VARIATION Variation of Traits in a Population (gene pool) Population: all the members of the same species that live in a.

Unit 5 Evolution. What is Evolution? Evolution: Microevolution Change in a population’s genetic structure over time Change in: alleles/genotype.

Evolution Selection Natural vs. artificial Fitness Galapagos Finch Directional, Stabilizing, Disruptive Selection Polymorphism = several forms of a species.

Microevolution. Levels of Evolutionary Study Microevolution: examines changes to the genes (alleles) within populations –Population Genetics: studies.

Evolution = changes in the morphology or behavior of species over time Macroevolution = irreversible large scale changes (e.g. speciation and extinction)

Patterns of Natural selection. If the Siberian Husky had heavier muscles, it would sink deeper into the snow, so they would move slower or would sink.

State Standard SB5D. Relate natural selection to changes in organisms Natural Selection (15.3)

EVOLUTION Descent with Modification. How are these pictures examples of Evolution?

Patterns of Evolution Macroevolution- large scale evolutionary patterns and processes that occur over long periods of time. Extinction Adaptive radiation.

October 2017 Journal: What is a theory? Are theories always true?

Charles Darwin 1859 – “Origin of Species” published

Evolution and Biodiversity: Origins, Niches, and Adaptations

Section 3: Beyond Darwinian Theory

Warm Up 7 Punctuated equilibrium coevolution adaptive radiation

Evolution Process where a species may change over time

Chapter 16 GENES AND VARIATION.

Patterns of Evolution There are several broad patterns of evolution observable in nature: Speciation Extinction Gradualism Punctuated equilibrium Adaptive.

Patterns In Evolution.

Mechanisms of Evolution

3 Types of Natural Selection

Evolution and Biodiversity

Evolution and Biodiversity

EVOLUTION JEOPARDY! EVIDENCE PATTERNS

Refers to the appearance of a new species over time

How do we create new species? How do old species become extinct?

October 5, 2017 Journal: What is a theory? Are theories always true?

Chapter 14 The History of Life

Unit 5 Evolution.

III. A Closer Look at Natural Selection

Warm Up Describe Each: Natural Selection Population Genetics

Speciation, Macroevolution, and Microevolution

Evidence for Evolution

Microevolution - Changes in the genes of populations

Different scales of evolution

Patterns of Evolution.

THE THEORY OF EVOLUTION

Mechanisms of Evolution

Short Term Evolution in the Peppered Moth

Evolution Notes Unit 7.

16.3 Beyond Darwinian Theory

Biological Evolution and Environmental Factors

Population Genetics Population: a group of organisms of the same species living together in a given region and interbreeding. Allele: Different forms of.

Presentation transcript:

Microevolution - Changes in the genes of populations

Macroevolution The appearance of new species over time “Speciation”

Patterns of Natural selection

If the Siberian Husky had heavier muscles, it would sink deeper into the snow, so they would move slower or would sink and get stuck in the snow. Yet if the Siberian Husky had lighter muscles, it would not be strong enough to pull sleds and equipment, so the dog would have little value as a working dog

Peppered Moth: Biston betularia Industrial melanism study by Kettlewell

Natural Selection

Migration

Mate Choice

Mutations

Genetic Drift

Convergent Evolution Convergent evolution

Coevolution - Evolution of Camouflage Mantis:mimicry http://www.pbs.org/wgbh/evolution/library/01/1/l_011_03.html

Orchid and Bee: coevolution http://www. pbs example of mimicry in which the orchid has evolved to resemble a female bee

Crab spider:

Adaptive Radiation

Extinction