IB Biology SL 3.2.1 Haploid gametes and diploid zygotes Question Bank
Practise IB Biology SL 3.2.1 by explaining why gametes contain one allele of each gene and fuse to restore diploidy.
- Syllabus
- First assessment 2025
- Course
- Biology SL
- Level
- SL
Exam points
- Explain that haploid gametes contain one chromosome set and one allele of each gene.
- Relate gamete fusion to restoration of the diploid zygote chromosome number.
D3.2.1—Haploid gametes + fusion = diploid zygote question 1
[Maximum number: 1]
For what reason do gametes contain only one allele of each gene?
A
To prevent inbreeding in a population
B
Haploid cells contain only one set of chromosomes
C
The two alleles of a gene are separated during mitosis
D
Crossing over will always produce one allele of a gene
B
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