D3.1 Reproduction
Reproduction covers cloning, human and plant reproductive anatomy, cycles, fertilization, pregnancy, seed development and hormonal coordination across sexual life cycles.
- Syllabus
- First assessment 2025
- Topic
- D3.1
- Level
- HL
What you’ll learn
20 learning objectivesChoose one objective for a focused lesson, or study the complete topic.
Exam analysis
An aggregate view of how the complete D3.1 Reproduction appears across past papers.
Chance of appearing52%of analysed past papers
Latest appearanceNovember 2025
Most common paperPaper1
Most tested objectives
- D3.1.14 (HL)—Gametogenesis19 questions
- D3.1.8—Sexual reproduction in flowering plants17 questions
- D3.1.12—Seed dispersal and germination16 questions
Common question formats
- Definition or recall
- Diagram interpretation
- Process explanation
- Comparison
- Evaluation
- Experimental design
- Graph interpretation
Exam question appearances
November 2025Paper1A ["HL"] · TZ330[ 1 ]D3.1.14 (HL)—Gametogenesis
November 2025Paper1A ["HL"] · TZ329[ 1 ]D3.1.10—Promoting cross-pollination
November 2025Paper1A ["HL"] · TZ129[ 1 ]D3.1.14 (HL)—Gametogenesis
May 2025Paper2 ["HL"] · TZ38(a)[ 4 ]D3.1.2—Role of meiosis and gamete fusion
May 2025Paper1A ["HL"] · TZ132[ 1 ]D3.1.13 (HL)—Puberty control
Practice this topic
10 original exam-style questions based on the patterns above.
Coverage 2012–2025 · Updated 16 Jul 2026