PPT-AQA GCSE INHERITANCE, VARIATION AND EVOLUTION Part 1

Sexual and asexual reproduction Reproduction advantagesdisadvantages Sexual Asexual Needs two parents Only one parent needed quicker Produces variation in the offspring Identical offspring no variation. 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). . 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 . These slides can be used as a learning resource for students. . Some answers are broken down into steps for understanding and some are “final answers” that need you to provide your own method for.. 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 . For first teaching in 2015 and . f. or first assessment in 2017. Curriculum Adviser: Simon Miles. smiles@aqa.org.uk. / 07795 020693. Copyright © AQA and its licensors. All rights reserved.. Slide 1. . . Updated March 2017. . Contents. What is happening, when?. Reformed GCSEs. Reformed AS and A levels. Changes to practical science. Resits . Information about my school/college. Changes to marking, reviews and appeals. Module 1 Knowledge Organiser. KPI 20, 25 and 26. . KPI 7,9,11 and 13. Key words for analysis of set works . Beatles, Haydn, Santana, Copland. Composers intentions . Instrumentation. Structure. Tempo. 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.. Yvette Solomon. The size of the problem. GCSE resit entry and achievement of Grade A*- C as a proportion of those who did not achieve by age 16. GCSE resit achievement rates. The issue 1. The issue 2. 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). These questions are the same format as previous GCSE exams.. COPY. means they use the exact same numbers as the original GCSE question.. Otherwise, they are . clone. . questions. using different numbers.. 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:. Monday, 19. th. March 2018. 7:00 pm. Millennium Hall. Where are we now?. How is my child doing?. How is the school supporting progress?. How can parents support progress?. Examinations. Post 16 Progression. 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.