GCSE Biology Specification

OCR B J257

Section B6.1: How was the theory of evolution developed?

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#B6.1.1

state that there is usually extensive genetic variation within a population of a species

#B6.1.2

recall that genetic variants arise from mutations, and that most have no effect on the phenotype, some influence phenotype and a very few determine phenotype

#B6.1.3

explain how evolution occurs through natural selection of variants that give rise to phenotypes better suited to their environment

#B6.1.4

explain the importance of competition in a community, with regard to natural selection

#B6.1.5

describe evolution as a change in the inherited characteristics of a population over a number of generations through a process of natural selection which may result in the formation of new species

#B6.1.6

explain the impact of the selective breeding of food plants and domesticated animals

#B6.1.7

describe how fossils provide evidence for evolution

#B6.1.8

describe the work of Darwin and Wallace in the development of the theory of evolution by natural selection

#B6.1.9

describe modern examples of evidence for evolution including antibiotic resistance in bacteria

#B6.1.10

explain the impact of these ideas on modern biology and society