Pearson Edexcel International GCSE Biology · specification 4BI1 · Paper 2 | Whole paper: All content including bold B statements · Free · no account needed
5(d) Cloning (4BI1 specification)
Producing genetically identical organisms, in plants by tissue culture and in animals by nuclear transfer.
Learn it on Incandio
The 2 Incandio pages that teach this — each explained in full, then proved in marked questions, taught back to an AI pupil and defended in a debate. Completely free.
- Micropropagation — Growing thousands of identical plants from a few cells — and why this only works because a plant cell never quite gives up its options.
- Cloning Mammals — How a lamb was built from an udder cell, what that proved about every cell in your body, and what such animals are now used for.
The teaching route this belongs to: Topic 5 · Use of biological resources (Biology) — the lessons in order, with every gate.
Specification coverage
Topic 5 Use of biological resources (d) Cloning — statements 5.18–5.20B (includes bold B statements assessed on Paper 2 only)
Assessment objectives: AO1, AO2. Suggested learning time: 50 minutes.
Required knowledge
- Micropropagation of plants by tissue culture, and the conditions required
- Cloning in animals by nuclear transfer
- The advantages and disadvantages of cloning
- Bold B statements: the applications of cloning in greater depth
Required skills
- Explain why tissue culture must be carried out under sterile conditions
- Weigh the benefits and risks of animal cloning
How it is examined
- Multiple-choice and short-answer recall
- Application of the content to an unfamiliar context
- Extended open-response, marked on the quality of a connected explanation
Common mistakes
- Forgetting sterility in tissue culture. Without it, microorganisms outcompete the plant tissue.
- Saying clones are 'exactly the same'. They are genetically identical; the environment still produces differences.
This page maps the specification. The pages above teach it, and the Biology lessons hold the whole course — completely free.