A researcher prepares a model showing one very long DNA molecule arranged as a compact, tightly coiled structure.
What structure does the model represent?
[1]
A
A nucleus
B
A pair of chromosomes
C
A chromosome
D
A gene
Markscheme
1.2 Cell division Questions
104 exam-style questions on AQA GCSE Biology 1.2 Cell division, covering 1.2.1 Chromosomes, 1.2.2 Mitosis and the cell cycle, and 1.2.3 Stem cells. Each one has a worked solution and a mark scheme showing where the marks go.