IB Biology SL 1.2.10 Universal Genetic Code Question Bank
Practise IB Biology SL 1.2.10 by using shared codon meaning to explain gene transfer and protein production across species.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Explain how a universal genetic code lets transferred genes produce the same polypeptide.
- Use codon and cross-species evidence to explain recombinant protein production.
- Identify mitochondrial code differences as evidence that universality is not absolute.
A1.2.10—Conservation of genetic code question 1
[Maximum number: 1]
Some yeast genes can be replaced by human genes that then continue to produce the same human proteins in the yeast cells. Which statement helps to explain this evidence?
A
The DNA of yeast and humans is identical.
B
Yeast and humans have the same number of chromosomes.
C
The genetic code is universal.
D
Yeast and humans are both eukaryotes.
C
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