DP Biology (first assessment 2025)

Test builder »

Question 19M.2.SL.TZ1.6b

Select a Test
Date May 2019 Marks available [Maximum mark: 1] Reference code 19M.2.SL.TZ1.6b
Level SL Paper 2 Time zone TZ1
Command term Identify Question number b Adapted from N/A
b.
[Maximum mark: 1]
19M.2.SL.TZ1.6b
(b)

Identify the chromosome that is affected by a trisomy in this individual, naming the condition that this trisomy gives rise to.

Chromosome number:

Name of condition:

[1]

Markscheme

21 AND Down syndrome/trisomy 21 ✔

Both needed

Examiners report

The idea of 21 trisomy and Down Syndrome was very common. Rarely students made references to autism or other conditions after correctly identifying 21 trisomy. Rarely other chromosome numbers with incorrect conditions were referred to

Syllabus sections