Topic 17.2: Natural and artificial selection (CIE A-level Biology)

This bundle of detailed lessons covers points (a), (b), © & (d) of topic 17.2 (Natural and artificial selection) of the CIE A-level Biology specification. All of the lesson PowerPoints and accompanying resources contain a wide range of activities including exam-style questions, discussion periods and quick quiz competitions, which will engage and motivate the students whilst covering the detail of each sub-topic.

As a result of these lessons, students will understand how random mutations result in variation within species which allows selection pressures to act on the individuals and conveying an advantage to some. The result is an increase in the frequency of some alleles and this change can be calculated using the Hardy-Weinberg principle