| Date | May 2013 | Marks available | 1 | Reference code | 13M.1.HL.TZ2.3 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 3 | Adapted from | N/A |
Question
What causes cells to differentiate?
A. Sufficient nutrition
B. Full expression of all genes
C. Specialized functions at different stages of embryo development
D. Expression of some genes with suppression of other genes
Markscheme
D
Examiners report
N/A
Syllabus sections
Show 65 related questions
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