ConceptConceptDocsDocuments

IB Biology HL A1.2.11 DNA Directionality Question Bank

Practise IB Biology HL A1.2.11 by identifying 5′ and 3′ termini and reading antiparallel strand direction from DNA diagrams.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Identify 5′ and 3′ termini from phosphate, hydroxyl and strand diagrams.
  • Label antiparallel strands and read the 5′ to 3′ direction in a DNA diagram.

A1.2.11 (HL)—Directionality of RNA and DNA question 1

[Maximum number: 1]

The diagram shows a nucleic acid, with some of the bases indicated.

Figure for Question A1.2.11 (HL)—Directionality of RNA and DNA question 1 — IB Biology HL

Identify the terminal indicated by Y on the diagram.

All question bank results loaded