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IB Biology HL 1.2.13 Initiation of transcription at promoter Question Bank

Practise IB Biology HL 1.2.13 by applying initiation of transcription at promoter concepts to exam-style questions.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • identify the relevant biological structure, process or evidence
  • apply the correct biological mechanism to the question
  • evaluate the result using data, adaptation or ecological reasoning

D1.2.13 (HL)—Initiation of transcription at promoter question 1

[Maximum number: 2]

The diagram shows the tandem repeats on two different chromosomes for a couple and their children. The number of tandem repeats of the sequence AGAT is shown on chromosome 5 (Chr 5) and the sequence of AGAA on chromosome 18 (Chr 18). One child is adopted.

Figure for Question D1.2.13 (HL)—Initiation of transcription at promoter question 1 — IB Biology HL

Explain the function of a promoter in DNA.

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