DP Biology (first assessment 2025)

Test builder »

Question SPM.1A.SL.TZ0.8

Select a Test
Date May Specimen-2023 Marks available [Maximum mark: 1] Reference code SPM.1A.SL.TZ0.8
Level SL Paper 1A Time zone TZ0
Command term Question number 8 Adapted from N/A
8.
[Maximum mark: 1]
SPM.1A.SL.TZ0.8

A strand of DNA containing four codons with base sequence ACT GTA CTC TAC mutates, changing the base sequence to ACT ATG CTC TAC. What type of mutation has occurred?


A.  Insertion

B.  Substitution

C.  Deletion

D.  Degeneracy

[1]

Markscheme

B

Syllabus sections