plumiWhat is the genome and what does it do?: OCR GCSE Combined Science B questions
Every OCR GCSE Combined Science B exam question on B1.1 What is the genome and what does it do?, 2018–2025, with its mark scheme and examiner’s report.
Paper
All papers
Exam
All years
Calculations
Q6(b)(i)
The whole paper ↗Q5(b)
The whole paper ↗Q2(a)
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Q2(b)
The whole paper ↗Q2(c)
The whole paper ↗Q7(a)
The whole paper ↗
Q7(b)
The whole paper ↗Q9(a)
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Q9(d)
The whole paper ↗Q9(e)
The whole paper ↗Q2(a)(i)
The whole paper ↗Q2(a)(ii)
The whole paper ↗Q1(c)
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Q8(a)
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Q8(b)
The whole paper ↗Q7(a)
The whole paper ↗Q1(a)
The whole paper ↗Q3(a)
The whole paper ↗Q8(a)
The whole paper ↗Q8(b)(i)
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All 27 questions on What is the genome and what does it do?, as a list
- June 2025, Biology Paper 1 Foundation, Q6(b)(i) (1 mark): The Tay-Sachs allele codes for a functional protein that has an active site. What type of protein does the Tay-Sachs allele code for? Tick (✓) one box. Carbohyd
- June 2025, Biology Paper 5 Higher, Q5(b) (1 mark): Tay-Sachs disease damages nerve cells in the nervous system. The Tay-Sachs allele codes for a functional protein that has an active site. What type of protein d
- June 2024, Biology Paper 1 Foundation, Q2(a) (1 mark): Which part of a plant cell is the genetic material stored in? Tick (✓) one box. Cell wall Cytoplasm Nucleus Vacuole [1]
- June 2024, Biology Paper 1 Foundation, Q2(b) (2 marks): Complete the sentences about genetic material. Put a ring around each correct option. Genetic material contains chloroplasts / instructions / proteins which con
- June 2024, Biology Paper 1 Foundation, Q2(c) (3 marks): Genetic material is made of DNA. Which statements about DNA are true and which are false? Tick (✓) one box in each row. True False DNA is a polymer. DNA is a tr
- June 2024, Biology Paper 5 Higher, Q7(a) (3 marks): Complete the sentences to explain how the genetic material controls how cells develop and function. The entire genetic material of an organism is called the . T
- June 2024, Biology Paper 5 Higher, Q7(b) (1 mark): The diagram shows one strand of the polymer that makes up the genetic material. Put a ring around one nucleotide on the diagram. [1]
- June 2023, Biology Paper 1 Foundation, Q9(a) (1 mark): Which statement is correct? Tick (3) one box. Every feature is controlled by a single gene. Every feature is controlled by multiple genes. Most features are con
- June 2023, Biology Paper 1 Foundation, Q9(d) (2 marks): Describe how our genes affect our features. [2]
- June 2023, Biology Paper 1 Foundation, Q9(e) (1 mark): Describe one example of how our features can be affected by our environment. [1]
- June 2023, Combined Science Paper 4 Foundation, Q2(a)(i) (1 mark): What is a genome? [1]
- June 2023, Combined Science Paper 4 Foundation, Q2(a)(ii) (1 mark): What is the function of the nucleus in a plant cell? Tick (✓) one box. It controls what goes into and out of the cell. It controls how organisms develop and fun
- June 2022, Biology Paper 1 Foundation, Q1(c) (4 marks): Complete the sentences to describe the genetic material. Use words from the list. alleles chromosomes DNA helix lipids nucleotides protein In a human body cell,
- June 2022, Biology Paper 5 Higher, Q8(a) (2 marks): Mutations can happen in the lactase gene. Give two reasons why most of these mutations will have no effect on the lactase protein. 1 2 [2]
- June 2022, Biology Paper 5 Higher, Q8(b) (3 marks): The probability of someone having the lactase mutation is 0.3. In 2021 the human adult world population was estimated to be 5.85 billion. Calculate the number o
- November 2021, Biology Paper 5 Higher, Q7(a) (4 marks): Complete each sentence about how the genetic material of a eukaryotic cell relates to its function. Use the words. You can use each word once, more than once, o
- November 2020, Biology Paper 1 Foundation, Q1(a) (3 marks): Put a ring around the correct option to complete each sentence about the structure of DNA. DNA is a long-chain molecule, which is made from smaller molecules ca
- November 2020, Biology Paper 5 Higher, Q3(a) (2 marks): Chromosomes are made from DNA. Describe the structure of DNA. [2]
- November 2020, Biology Paper 5 Higher, Q8(a) (3 marks): Complete the sentences to describe how the genome affects the phenotype in eukaryotic organisms. Use words from the list. You can use each word once, more than
- November 2020, Biology Paper 5 Higher, Q8(b)(i) (2 marks): Diagnosing the genetic disorder is difficult as there are many different symptoms but once it is diagnosed, the symptoms can be treated. Suggest two reasons why
- November 2020, Biology Paper 5 Higher, Q8(b)(iii) (2 marks): At least one in 2000 UK babies is affected by this disorder each year. 679 106 babies were born in the UK in 2017. Assume 1 in 2000 of these babies were born wi
- June 2019, Combined Science Paper 4 Foundation, Q2(a) (1 mark): Genes are short sections of a long molecule. What is the name of this long molecule? [1]
- June 2019, Biology Paper 5 Higher, Q4(b)(i) (1 mark): Proteins are polymers. Which molecules are joined together to make a protein? Tick (✓) one box. Amino acids Fatty acids Glycerol Sugars [1]
- June 2019, Biology Paper 5 Higher, Q4(b)(ii) (3 marks): DNA is also a polymer. Describe the structure of DNA. [3]
- June 2019, Biology Paper 5 Higher, Q4(b)(iii) (2 marks): Explain how changes to the DNA polymer can cause changes to the protein polymer. [2]
- June 2018, Biology Paper 1 Foundation, Q3(a)(i) (2 marks): Which two statements about the genome are correct? Tick (✓) two boxes. The genome is the entire genetic material of an organism. Each organism’s genome is ident
- June 2018, Biology Paper 1 Foundation, Q3(a)(ii) (2 marks): A student makes some notes about genomes. 1. The genome is made from DNA. 2. Genes are sections of DNA. 3. DNA is wound into a triple helix. 4. DNA is a polymer
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