Genes and inheritance teaching resources

Worksheets and lesson ideas to challenge students aged 11 to 16 to think hard about genes and inheritance (GCSE and Key Stage 3)

If there is one thing that blows my mind it is the fact that there is one universal genetic code. You can take a gene from a human, put it into a bacterium and the bacterium will make the human protein. Now that’s cool. Understanding genetics is important for lots of different concepts, from understanding evolution to gene therapy but there are lots of similar words to learn, all with very different meanings which can make it a tricky area to teach.

Where to start?

Extract DNA from strawberries as a demonstration. This can then lead to a discussion about how DNA is organised inside the nucleus.

Nuclei, genes and chromosomes

Key Stage 3 activity on organisation of genetic material. An analogy model is introduced in parallel with the scientific idea which hopefully helps students make sense of the relationships between nuclei, chromosomes, genes and DNA. (PDF)

Genes, chromosomes and proteins

GCSE activity on genes, DNA and proteins. This worksheet helps students understand the relationship between genes, DNA and proteins. Students work in groups to list various structures, such as genes, DNA and proteins, in order of size. Students also describe the structure of DNA, and explain how DNA codes for proteins. (PDF)

Genetic modification

GCSE activity on genetic modification of bacteria. Students order a sequence of steps to correctly describe the process of genetic modification of a bacterium using plasmids. (PDF)

GCSE activity on transgenic plants. This activity encourages students to think like a scientist. It challenges them to develop a grant proposal for a transgenic potato plant that is resistant to insects. Students describe the steps involved in the process of genetic modification and outline what equipment they would need. (PDF)

Polymerase chain reaction

This fantastic video on PCR is a great addition to any lesson on the polymerase chain reaction. The lyrics are worth listening. You can also download them here.

Thinking deeper

Back to Biology teaching resources