CAIE IGCSE Biology 18.1.6 Mutation As Genetic Change Questions
Practise defining mutation as genetic change and recognising changes to DNA base sequence in unfamiliar contexts.
- Syllabus
- 2026–2028
- Course
- Biology 0610
Exam points
- describe mutation as a genetic change in a gene or DNA that can create a new allele
CAIE IGCSE Biology 18.1.6 Mutation As Genetic Change Questions question 1
Colour blindness is a characteristic that is inherited. Colour blindness is more common in males than in females.
Fig. 6.1 is a pedigree diagram showing the inheritance of colour blindness in a family.
Fig. 6.1
There was no history of colour blindness in the parents and grandparents of individuals 1 and 2.
Suggest how colour blindness first occurred in the family in Fig. 6.1.
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