A news report claims that a gene is a whole chromosome and the genome is the collection of proteins in a cell.
.1
Correct both claims using the relationships between DNA, genes, chromosomes and the genome.
[2 marks]
.2
Suggest two benefits of studying human genomes.
[2 marks]
5 marksFoundation and Higher
Spec and skills
Original practice question
Answer and supported method checks
A nursery produces 240 clones from one disease-resistant plant using meristem tissue. All are planted in one field.
.1
Explain how meristem cells produce complete plants.
[2 marks]
.2
Evaluate planting only these clones in one field.
[3 marks]
4 marksFoundation and Higher
Spec and skills
Original practice question
Answer and supported method checks
A pharmaceutical team isolates a compound from willow. Another team studies a mould that prevents nearby bacteria growing.
.1
Explain how these investigations relate to the origins of aspirin and penicillin.
[2 marks]
.2
Evaluate the claim that a natural origin guarantees a safe and effective medicine.
[2 marks]
4 marksFoundation and Higher
Spec and skills
Original practice question
Answer and supported method checks
Rose leaves develop black spots and fall early. A grower collects fallen leaves, then sprays a fungicide. A neighbour claims that antibiotics would always be a better treatment.
.1
Explain why early leaf loss reduces plant growth.
[2 marks]
.2
Evaluate the treatments described.
[2 marks]
4 marksFoundation and Higher
Spec and skills
Original practice question
Answer and supported method checks
A buried bone is found in sedimentary rock, while a soft-bodied organism from the same ancient habitat has left no recognisable fossil.
.1
Describe how the bone could become a fossil.
[2 marks]
.2
Explain why this find cannot prove that only hard-bodied organisms lived there.
