DP Biology (first assessment 2025)
Question 22N.2.HL.TZ0.e
| Date | November 2022 | Marks available | [Maximum mark: 1] | Reference code | 22N.2.HL.TZ0.e |
| Level | HL | Paper | 2 | Time zone | TZ0 |
| Command term | State | Question number | e | Adapted from | N/A |
e.
[Maximum mark: 1]
22N.2.HL.TZ0.e
State one reason that identical twins may show different methylation patterns as they grow older.
[1]
Markscheme
(different) environment/illness/disease/diet;
Not mutation
Examiners report
Most candidates knew that differences in environmental factors can cause differences in methylation pattern.
