AQA 8461 GCSE Biology: Inheritance, Variation, Evolution Masterminds
Question 1
Q1. Knowledge Recall (1 mark)
Define the term "gene".
Question 2
Q2. Application (2 marks)
Explain how the environment can affect the phenotype of an organism. Give an example.
Question 3
Q3. Extended Response (3 marks)
Describe the role of meiosis in the formation of gametes. How does it ensure genetic variation?
Question 4
Q4. Knowledge Recall (1 mark)
What is the difference between a homozygous and a heterozygous genotype?
Question 5
Q5. Application (2 marks)
Explain how DNA profiling can be used to identify an individual, such as in criminal investigations.
Question 6
Q6. Extended Response (4 marks)
Describe the theory of evolution by natural selection. In your answer, include:
- Definition of natural selection
- The role of variation and selective pressure
Question 7
Q7. Knowledge Recall (1 mark)
What is the difference between selective breeding and genetic engineering?
Question 8
Q8. Application (2 marks)
Explain the role of cloning in producing organisms with identical genetic material.
Question 9
Q9. Extended Response (3 marks)
Describe the concept of a species. How can scientific evidence be used to define species boundaries?
Question 10
Q10. Application (2 marks)
Explain how genetic variation contributes to the survival of a population when faced with environmental change.