Subjects / LC Biology / Unit 2: The Cell
Chromosomes, non-nuclear inheritance and epigenetics (2025 spec)
Chromosome structure (histones, chromatin, centromere), coding and non-coding DNA, mitochondrial and chloroplast DNA, and epigenetic control of gene expression. Added for the revised specification (students starting 5th year from September 2025).
5th Year6th Year HigherOrdinary
Helps to know first:
DNA, RNA and protein synthesis
15practice questions
Fill the gaps: 1 · Match the pairs: 1 · Multiple choice: 10 · Select all that apply: 1 · Short answer: 1 · Written answer (self/teacher assessed): 1
Each question has up to three hints, a worked explanation, and is tracked in your progress and review plan.
Practise this topic