| Date | May 2009 | Marks available | 1 | Reference code | 09M.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
Which of the following processes result in the production of recombinants?
I. Crossing over between linked genes
II. Reassortment of non-linked genes
III. Mutation
A. I only
B. I and II only
C. I and III only
D. I, II and III
Markscheme
B
Examiners report
Many candidates confused the production of recombinants with the source of variety. This question did not discriminate well.
