CourseCourseConceptConceptDocumentDocument

IB Biology HL D1.2.2 Hydrogen Bonding in Transcription Questions

In IB Biology HL D1.2.2, free RNA nucleotides align with the DNA template by complementary base pairing and hydrogen bonding. DNA adenine pairs with RNA uracil, while cytosine pairs with guanine.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Apply complementary base pairing during transcription, matching DNA adenine with RNA uracil and cytosine with guanine.

IB Biology HL D1.2.2 Hydrogen Bonding in Transcription Questions question 1

[Maximum number: 1]

The sequence of bases on a short section of the antisense strand of a gene undergoing transcription is shown:

5′ CATG 3′5^{\prime} \text { CATG } 3^{\prime}

What is the sequence of bases on the resulting mRNA?

A

3′3^{\prime} CATG 5′5^{\prime}

B

5' GUAC 3'

C

3′3^{\prime} GUAC 5′5^{\prime}

D

3′GTAC3^{\prime} \mathrm{GTAC} 5'

All question bank results loaded