| Date | May 2018 | Marks available | 1 | Reference code | 18M.1.HL.TZ1.35 |
| Level | Higher level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 35 | Adapted from | N/A |
Question
What forms when two different chromatids of the same homologous pair cross over?
A. Daughter centromere
B. Chiasma
C. Chromosome mutation
D. Telomere
Markscheme
B
Examiners report
[N/A]
