Biology · Paper 2 · Foundation + Higher · B6
Variation means differences between individuals in a population. Some differences result from inherited alleles; others result from the environment. Many characteristics, such as height, depend on both genes and environment. Scars are environmental; inherited blood-group alleles are genetic.
No timer. Read the explanation after each answer.
Daily 5 · Exam practice · Revision sheet ↓
Foundation + Higher · B6. Fourteen core lessons, followed by two labelled Higher Tier lessons.
AQA Combined Science Trilogy 8464 · 4.6.2.1. Original notes, questions and diagrams. Models are simplified; teaching data are illustrative.