| Date | May 2012 | Marks available | 1 | Reference code | 12M.1.HL.TZ2.11 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Define | Question number | 11 | Adapted from | N/A |
Question
What is a gene mutation?
A. Failure of chromosome pairs to separate properly during cell division
B. Changes to genes caused by natural selection
C. Changes to the nucleotide sequence of the genetic material
D. Changes in karyotypes
Markscheme
C
Examiners report
N/A
