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🎓 IGCSE Biology - The Complete Course: https://www.tes.com/teaching-resource/resource-12989155 IGCSE Chemistry - The Complete Course: 🎓 Complete Teaching Resource (including past exam questions and mark schemes organised by chapter): https://www.tes.com/teaching-resource/resource-13280954 🎓 Student resource (PDF only): https://www.tes.com/teaching-resource/resource-13245244 🎓 All the videos (the complete library on Patreon): https://www.patreon.com/igbiocomplete ☕️ Buy me a coffee - https://www.buymeacoffee.com/ArthurJohnParker Cambridge IGCSE Biology (0610/0970) Chapter 16 - Reproduction Topic 16.2 - Sexual reproduction For exams from 2025 (core and extended) As always this video follows the Cambridge syllabus exactly and contains absolutely everything you need to know for your final exam! My other channels: @igpecomplete - Cambridge IGCSE PE @ocrpecomplete - OCR GCSE PE Timestamps: 0:00 Contents 0:28 Sexual reproduction 1:18 Haploid and diploid (extended) 2:00 Advantages and disadvantages of sexual reproduction (extended) Core content: - Describe sexual reproduction as a process involving the fusion of the nuclei of two gametes to form a zygote and the production of offspring that are genetically different from each other - Describe fertilisation as the fusion of the nuclei of gametes Extended content: - State that nuclei of gametes are haploid and that the nucleus of a zygote is diploid - Discuss the advantages and disadvantages of sexual reproduction: (a) to a population of a species in the wild (b) to crop production Context: - 16.1 - Asexual reproduction: A process resulting in the production of genetically identical offspring from one parent. - 16.2 - Sexual reproduction - 16.3 - Sexual reproduction in plants: Pollination, fertilisation and the structures of insect pollinated and wind-pollinated flowers, including petals, sepals, stamens, filaments, anthers, carpels, style, stigma, ovary and ovules. - 16.4 - Sexual reproduction in humans: Structure and function of the male and female reproductive systems, the adaptive features of sperm and egg cells and the functions of the umbilical cord, placenta, amniotic sac and amniotic fluid in the development of the fetus. - 16.5 - Sexual hormones in humans: The roles of testosterone and oestrogen during puberty, the changes that occur in the ovaries and to the lining of the uterus during the menstrual cycle and the roles of FSH, LH, progesterone and oestrogen in controlling the menstrual cycle and pregnancy. - 16.6 - Sexually transmitted infections: Including the transmission of HIV or AIDS.
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