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Practice Questions for GCSE Physics

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Inheritance, Variation and Evolution Practice Questions

Question 1

Q1. Knowledge Recall (1 mark)

Define the term genotype.

Question 2

Q2. Application (2 marks)

Explain how the process of meiosis contributes to genetic variation.

Question 3

Q3. Knowledge Recall (1 mark)

State the difference between a dominant allele and a recessive allele.

Question 4

Q4. Application (2 marks)

A breeder wants to cross a pea plant with purple flowers (PP) with a pea plant with white flowers (pp). What is the genotype and phenotype of the offspring?

Question 5

Q5. Extended Response (3 marks)

Describe the role of natural selection in the evolution of a population.

Question 6

Q6. Knowledge Recall (1 mark)

What is the process by which DNA replicates?

Question 7

Q7. Application (3 marks)

Explain how a mutation in a gene can affect the phenotype of an organism.

Question 8

Q8. Knowledge Recall (2 marks)

Define the term genetic engineering.

Question 9

Q9. Application (2 marks)

Suggest how genetic engineering could be used to benefit human health.

Question 10

Q10. Extended Response (4 marks)

Compare and contrast cloning and selective breeding.