IB Biology HL 3.1.10 Comparison of Genome Sizes
Practise IB Biology HL 3.1.10 by analysing genome-size graphs, gene numbers and functional DNA across organisms and species.
- Syllabus
- First assessment 2025
- Course
- Biology HL
- Level
- HL
Exam points
- Analyse genome-size scattergraphs and tables without assuming that more DNA or genes means greater complexity.
- Compare gene number, DNA amount and functional DNA when interpreting genome data.
A3.1.10—Comparison of genome sizes question 1
The scattergraph shows the genome sizes of four Enterococcus species.
What can be concluded about the genomes in Enterococcus?
A
E. pallens has the greatest number of genes.
B
E. faecalis and E. faecium have the same mean number of genes.
C
The total genetic information in Enterococcus is constant within each species.
D
E. pallens has more DNA than E. columbae.
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