| Date | May 2011 | Marks available | 1 | Reference code | 11M.1.SL.TZ1.14 |
| Level | Standard level | Paper | Paper 1 | Time zone | Time zone 1 |
| Command term | Question number | 14 | Adapted from | N/A |
Question
Which of the following statements about homologous chromosomes is correct?
A. Each gene is at the same locus on both chromosomes.
B. They are two identical copies of a parent chromosome which are attached to one another at the centromere.
C. They always produce identical phenotypes.
D. They are chromosomes that have identical genes and alleles.
Markscheme
A
Examiners report
N/A
