This unit looks at how the phenominal variety on Earth has developed.   It introduces the key idea of evolution by natural selection and looks at how humans have changed other organsims to suit our purposes.

Specification links:

• Set 1 all of 4.6.2

• Set 2 and 3 all of 4.6.2

Task 2b: Make notes that:

• Define variation

• Define genetic and environmental variation and give two examples of each

• Describe how identical twins are produced

• Explain how we can prove is a charactierisic is inherited

Task 2c: Answer the exam question and self mark

Task 3b: Make notes that:

• Define evolution and natural selection

• Copy the diagram on slide 8 to show the process of natural selection

• Define mutations and explain how they occur

• Give two real life examples of natural selection

Task 4b:

• Define selective breeding and describe how it is carried out

• Give examples of the uses of selective breeding (slide 9)

• Give two disadvantages of selective breeding

Task 4c: Answer the exam questions and self mark

Task 5b: Make notes that:

• Define genetic engineering

• Watch the video on slide 9 and list the stages involved in genetic engineering.

• List the benefits of genetic engineering

• List the risk of genetic engineering

• Describe the difference between genetic engineering and genetically modified

Task 6b: Make notes that:

• Define clone

• Describe the stages involved in cloning plants by taking cuttings and tissue culture

• Describe the stages involved in cloning animals by embryo transfer and give the advantages and disadvantages of this process

• Describe the stages involved in cloning animals by adult cell cloning and give the advantages and disadvantages of this process

Task 6c: Answer the exam questions and self mark

Task 7a: Complete the seneca learning unit for your set.

Set 1 - Topic 6.2

Set 2 - Topic 6.2

Set 3 - Topic 6.2.1 - 6.2.5

Task 7b:  Make a mind map or single page revision summary of this topic and add it to your revision folder.  Use the specification to help.

• Set 1 all of 4.6.2

• Set 2 and 3 all of 4.6.2

Task 8 :  Complete the quiz for your set to make sure you understand this unit.