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IB Biology HL 3.2.1 Haploid gametes and diploid zygotes Question Bank

Practise IB Biology HL 3.2.1 by analysing gamete genotypes and chromosome sets inherited at fertilisation.

Syllabus
First assessment 2025
Course
Biology HL
Level
HL

Exam points

  • Analyse which genotypes can occur in haploid gametes and how chromosome sets are inherited.
  • Evaluate how gamete fusion restores diploid chromosome number in the zygote.

D3.2.1—Haploid gametes + fusion = diploid zygote question 1

[Maximum number: 1]

What is always passed to the next generation as a result of sexual reproduction?

A

Homologous chromosomes from the mother

B

A chromatid from every chromosome of the father

C

A haploid set of chromosomes from the mother

D

All alleles from each parent

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