DP Biology (last assessment 2024)
Question 19M.2.SL.TZ1.a
Date | May 2019 | Marks available | [Maximum mark: 1] | Reference code | 19M.2.SL.TZ1.a |
Level | SL | Paper | 2 | Time zone | TZ1 |
Command term | Identify | Question number | a | Adapted from | N/A |
a.
[Maximum mark: 1]
19M.2.SL.TZ1.a
The image shows the chromosomes from a body cell of an adult human.
[Source: http://www.ornl.gov/sci/techresources/Human_Genome/graphics/slides/elsikaryotype.shtml,
U.S. Department of Energy Human Genome Program.]
Identify, with a reason, the sex of this individual.
[1]
Markscheme
male because Y chromosome present
OR
male because sex chromosomes/last two chromosomes/pair 23 are unpaired/different «from each other»/not homologous ✔
Examiners report
Candidates knew this!
