Inherited disorders Practice Questions

Question 1

Q1. Define the term 'dominant allele'. (2 marks)

Question 2

Q2. State the probability of inheriting a recessive genetic disorder if both parents are carriers. (2 marks)

Application of Knowledge (2-3 marks)

Question 3

Q3. Explain why individuals with sickle cell anaemia are more susceptible to malaria. (3 marks)

Question 4

Q4. Describe the symptoms of cystic fibrosis and explain how they can affect an individual's quality of life. (3 marks)

Data Analysis/Interpretation (3-4 marks)

Question 5

Q5. The table shows the number of people with and without haemophilia in a population.

Genotype

Number of people

HH

1000

Hh

1600

Calculate the frequency of the recessive allele in the population. (4 marks)

Question 6

Q6. The graph shows the progress of a genetic disease in a family.

[Graph description would be here]

Explain the inheritance pattern of this disease. (3 marks)

Question 7

Q7. A woman who is a carrier for a sex-linked recessive disorder marries a man who is not affected. What is the probability that their first daughter will have the disorder? (3 marks)

Real-World Context (2-3 marks)

Question 8

Q8. Discuss the ethical implications of genetic testing for inherited disorders. (3 marks)

Question 9

Q9. Explain how screening programmes for inherited disorders can improve public health. (2 marks)

Question 10

Q10. Describe the role of gene therapy in the treatment of inherited disorders. (3 marks)

hh

400

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