A scientist compares a root hair cell with a photosynthesising cell from a sunlit leaf of the same pea plant.
Which statement about the origin of their different sub-cellular structures is correct?
The cells inherited the same genetic information; differentiation then gave them structures suited to their different functions.
The cells inherited different sections of genetic information, because each received only the genes needed at its location.
The cells inherited identical sub-cellular structures, which then began to perform different functions in the root and leaf.
Exposure to light changed the leaf cell's genetic information, causing it to develop a different set of structures.
282 exam-style questions on AQA GCSE Biology 1.1 Cell structure, covering 1.1.1 Eukaryotes and prokaryotes, 1.1.2 Animal and plant cells, 1.1.3 Cell specialisation, 1.1.4 Cell differentiation, 1.1.5 Microscopy, and 1.1.6 Culturing microorganisms. Each one has a worked solution and a mark scheme showing where the marks go.