DP Biology (first assessment 2025)

Test builder »

Question 19N.2.HL.TZ0.e

Select a Test
Date November 2019 Marks available [Maximum mark: 2] Reference code 19N.2.HL.TZ0.e
Level HL Paper 2 Time zone TZ0
Command term Distinguish Question number e Adapted from N/A
e.
[Maximum mark: 2]
19N.2.HL.TZ0.e

Distinguish between the proportion of ancestral and derived alleles for all three genes in O. sativa indica and O. sativa japonica.

[2]

Markscheme

a. O.s. indica has more of the ancestral allele «for all three genes» ✔ Accept converse.

b. lower/higher values for ancestral/derived are not for the same genes ✔ Allow specific gene examples.

c. for O. s. indica the highest proportion is for DPL2 ancestral, but for O. s. japonica is GS3 derived allele ✔ Allow converse for smallest derived.

Syllabus sections