5 marksFoundation and Higher4.6.2.4 Genetic engineering
AQA Trilogy 8464
Spec and skills
Paper scope: B2
Spec 4.6.2.4
Original practice question
Answer and supported method checks
A genetically engineered crop produces a protein harmful to one insect pest. Small field trials report less insect damage, but did not measure other insect populations.
.1
Explain how genetic engineering can produce the new crop characteristic.
[2 marks]
.2
Evaluate whether the trial establishes that large-scale use has no ecological disadvantages.
[3 marks]
4 marksFoundation and Higher4.5.3.4 Contraception
AQA Trilogy 8464
Spec and skills
Paper scope: B2
Spec 4.5.3.4
Original practice question
Answer and supported method checks
A contraceptive comparison gives typical-use pregnancies per 100 users in one year: method A, a daily hormonal pill, 8; method B, an implant, 1. Neither method protects against sexually transmitted infections.
.1
Calculate the difference in expected pregnancies between 500 users of A and 500 users of B for one year.
[2 marks]
.2
A person often forgets daily medication and also wants infection protection. Evaluate these methods for that person.
[2 marks]
6 marksFoundation and HigherRequired practical 064.5.2 The human nervous system
AQA Trilogy 8464
Spec and skills
Paper scope: B2
Spec 4.5.2
Original practice question
Answer and supported method checks
Students want to test whether doing mental arithmetic changes ruler-drop reaction time. They will use a safe classroom investigation with volunteers. You may compare drop distances directly: longer distances indicate slower reactions.
Plan the investigation so that the results can support a valid comparison.
[6 marks]
4 marksFoundation and Higher4.6.1.6 Sex determination
AQA Trilogy 8464
Spec and skills
Paper scope: B2
Spec 4.6.1.6
Original practice question
Answer and supported method checks
A chart shows an XX egg-producing parent and an XY sperm-producing parent. A student says that the egg determines whether the child is XX or XY.
.1
Explain why the student’s statement does not follow the chromosome model.
[2 marks]
.2
Explain why an earlier XY child does not make an XX child more likely next time.
[2 marks]
6 marksHigher4.6.4 Classification of living organisms
AQA Trilogy 8464
Spec and skills
Paper scope: B2
Spec 4.6.4
Original practice question
Answer and supported method checks
A proposed classification puts a whale with fish because both have a streamlined body. A second classification puts it with mammals using inherited features and DNA evidence.
Evaluate which evidence provides the stronger basis for an evolutionary classification.
