CAIE A-Level Biology A2 16.1.3 Reduction Division Questions
Explain reduction division in meiosis using evidence from each question and mark scheme.
- Syllabus
- 2028–2030
- Course
- Biology 9700
- Level
- A2
Exam points
- Explain reduction division in meiosis.
CAIE A-Level Biology A2 16.1.3 Reduction Division Questions question 1
[Maximum number: 2]
M. musculus produces gametes by meiosis. These gametes are genetically different.
There is random fusion of gametes at fertilisation.
Explain why meiosis is important in the life cycle of M. musculus, apart from producing genetically different gametes.
any two from:
1 ref. to reduction division ;
2 halves the chromosome number ;
3 (so) fertilisation / fusion of gametes, gives, diploid / 2n / 40;
4 prevents chromosome number doubling (each generation) ;
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