| Date | May 2018 | Marks available | 1 | Reference code | 18M.1.HL.TZ2.17 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 2 |
| Command term | Question number | 17 | Adapted from | N/A |
Question
Which process could cause non-disjunction if it occurred during meiosis?
A. Sister chromatids do not align in metaphase I.
B. Homologous chromosomes do not separate in anaphase I.
C. Sister chromatids do not align in metaphase II.
D. Homologous chromosomes do not separate in anaphase II.
Markscheme
B
Examiners report
[N/A]
