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IB Biology SL A1.2.1 Dna As Genetic Material Questions

Practise IB Biology SL A1.2.1 by identifying DNA as genetic material in genomes and explaining evidence from transformation, genome sequencing and cloning.

Syllabus
First assessment 2025
Course
Biology SL
Level
SL

Exam points

  • Identify DNA as genetic material using transformation and genome evidence from living organisms.
  • Distinguish inherited nuclear and mitochondrial DNA using genome-source and cloning evidence.

IB Biology SL A1.2.1 Dna As Genetic Material Questions question 1

[Maximum number: 1]

The image shows the results of Griffith's experiment with S and R strains of Streptococcus pneumoniae in mice (Mus musculus).

Figure for Question IB Biology SL A1.2.1 Dna As Genetic Material Questions question 1 — IB Biology SL

What is an explanation for the results?

A

Mice vary in their resistance to bacteria.

B

The R strain and S strain mated.

C

R strain bacteria are more heat-stable than S strain.

D

DNA was transferred from heat-killed S cells to R cells.

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