PPT-AQA GCSE INHERITANCE VARIATION AND EVOLUTION PART 4

Evidence from around the world experimentation geology fossils discussion with other scientists Alfred Wallace lead to Theory of evolution Biology only Charles Darwin On the Origin of the Species 1859. Basic Forces (what is needed for an evolvable system). Evolution – Basic Forces. Self-replication - reproduction. Heritability - a system by which characteristics can be passed from one generation to the next (here on Earth, DNA is that system). . Keywords: . B1 Topic 1 Classification, Variation and Inheritance. This topic looks at:. General characteristics of animals and plants. Problems surrounding classification. Adaptations of organisms that can survive in extreme environments. Theories of Inheritance. Chapter 7. Key Concepts. Neither Darwin nor Wallace knew how variation could be produced in Nature. . . What do we attribute this to now? . The accepted theories of inheritance were the . Lifeforms. Introduction to Unit. Vocab. for 8.L.4.2. Powell – 8. th. Grade Science. Watch:. “Isn’t Evolution Just a Theory?”. http://www.pbs.org/wgbh/evolution/educators/teachstuds/. svideos.html. What is variation?. Define Variation…. What controls variation in a population?. Most characteristics are controlled by multiple genes. Any character that shows a gradation from one extreme found in the population to the other is called .  . Anne Watson. University of . Witswatersrand. March 2017. Thanks to:. Thabit Al-Murani, Cecilia Kilhamn, Debbie Morgan. E. xchange visits between English and Shanghai teachers of mathematics. Political intention: change methods to 'mastery' to improve learning for all. Define the term variation.. Discuss the fact that variation occurs within, as well as between, species.. Describe the differences between continuous and discontinuous variation, using examples of a range of characteristics found in plants, animals and other organisms.. Description and Consequences. Supplementary Notes and Basic Definitions. Paul Ballonoff. 1,. *, . 1. Ballonoff Consulting, Paul@Ballonoff.net; . *. Corresponding author: Paul@Ballonoff.net. 1. Results and Discussion. (Hons), Zoology. Panjab University, Chandigarh. ORIGIN OF UNIVERSE. BIG BANG THEORY. Thermonuclear explosion. Origin of universe occurred 20 . bya. .. ORIGIN OF EARTH. NEBULAR HYPOTHESIS. Condensation of gases under Gravitational force. Sexual and asexual reproduction. Reproduction. advantages/disadvantages. Sexual. Asexual. Needs two parents.. Only one parent needed (quicker).. Produces variation in the offspring.. Identical offspring (no variation).. Human variation: defined . Human variation refers to the fact that there are a range of possible values for each of the numerous physical characteristics of human beings.. People of the same species can have differing phenotypic traits that can be related to:. JABLONKA & LAMB: CHANGING CONCEPT OF EPIGENETICSment. We will then consider the practical importance of epigenetics in med-icine, agriculture, and ecology and, finally, look at the implications thatre Unit 1 – Microbial life. Unit 1 – Microbial life. Unit 2 – Animal biology. Unit 2 – Animal biology. Unit 2 – Animal biology. Unit 3 – Plant biology. Early life on Earth. Respiration & diffusion. . Fossils provide a record of evolution. . Paleontology is the study of fossils or extinct organisms.. Paleontology provides evidence to support evolution.. Molecular and genetic evidence support fossil and anatomical evidence. .