Biology A-Level
Interphase and S phase
What Interphase and S phase means in Biology A-Level, as defined for AQA.
Definition of Interphase and S phase
Check what you remember
Read the wording for your board, then hide it and explain Interphase and S phase in your own words. Rough notes are fine. This is a self-check, with no mark or grade.
Reference: AQA
The stage of the cell cycle during which DNA replication occurs, specifically in the S (synthesis) phase, strictly before mitosis begins.
Topics that use Interphase and S phase
- All cells arise from other cells (AQA A-Level)
Related terms
- acid hydrolysis and squashing
- anaphase
- attachment protein and receptor
- cell plate and Golgi vesicles
- centromere attachment
- chromatid separation
- chromosome number maintained
- circular DNA replication
Using Interphase and S phase in the exam
Check the command word and mark scheme for your exact question. After comparing your explanation with the reference, use the term in an answer on the linked topic. This practice does not predict an exam mark.
Practise Biology questions
Create a free account to answer exam-style questions on this topic and get feedback on your answers.
Start free
All Biology A-Level termsA week of Premium from your first lesson · Then the free plan continues · No card, no charge