State two advantages and two disadvantages of asexual reproduction.
Written & reviewed by James Millett — Biology (Imperial College London), PGCE Science (University of Cambridge).
Model answer (4 marks)
Advantage 1: only one parent is required / no mate needed
Advantage 2: large numbers of offspring can be produced quickly / requires less energy
Disadvantage 1: lack of genetic diversity / all offspring are genetically identical
Disadvantage 2: population is prone to extinction from disease / cannot adapt to environmental change
Advantage 2: large numbers of offspring can be produced quickly / requires less energy
Disadvantage 1: lack of genetic diversity / all offspring are genetically identical
Disadvantage 2: population is prone to extinction from disease / cannot adapt to environmental change
Examiner tips
- Use the exact phrases from the mark scheme to secure full marks
- Keep each point brief and separate with a line break or bullet
- Avoid extra words that may distract the examiner
Common mistakes
- Writing the advantages and disadvantages in the wrong order, losing marks for each point
- Using vague terms like ‘fast’ or ‘many’ instead of the specific phrases required
Mark scheme (4 marks)
- Advantage 1: only one parent is required / no mate needed
- Advantage 2: large numbers of offspring can be produced quickly / requires less energy
- Disadvantage 1: lack of genetic diversity / all offspring are genetically identical
- Disadvantage 2: population is prone to extinction from disease / cannot adapt to environmental change
Key terms in this question
Related
- All Cambridge International IGCSE Biology (0610) revision notes →
- How to answer a "State" question →
- Decode the mark scheme abbreviations →
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