IB DP Biology Reproduction Study Notes - New Syllabus -2025
IB DP Biology Reproduction Study Notes
IB DP Biology Reproduction Study Notes at IITian Academy focus on specific topic and type of questions asked in actual exam. Study Notes focus on IB Biology syllabus with guiding questions of
- How does asexual or sexual reproduction exemplify themes of change or continuity?
- What changes within organisms are required for reproduction?
Standard level and higher level: 5 hours
Additional higher level: 3 hours
D3.1.1—Differences between sexual and asexual reproduction
Sexual reproduction involves two parents and produces genetically diverse offspring through meiosis and fertilization. Asexual reproduction involves a single parent and produces genetically identical offspring through mitosis. Sexual reproduction promotes genetic variation and adaptation, while asexual reproduction allows for rapid population growth in stable environments.
D3.1.2—Role of meiosis and fusion of gametes in the sexual life cycle
Meiosis and fertilization are two fundamental processes in sexual life cycles. Meiosis halves the chromosome number, producing haploid gametes. Fertilization doubles the chromosome number, restoring the diploid state. This cycle ensures genetic variation and the formation of new individuals.