GCSE Biology - Sexual & Asexual Reproduction | Gametes (2026/27 exams) скачать в хорошем качестве

GCSE Biology - Sexual & Asexual Reproduction | Gametes (2026/27 exams)

⭐️ Check out our website https://www.cognito.org/ ⭐️ ** WHAT'S COVERED ** 1. Introduction to Reproduction Two main types: sexual and asexual reproduction. Examples of organisms using each (plants, animals, bacteria). 2. Sexual Reproduction Involves the fusion of male and female gametes (fertilisation). Requires two parents. Results in offspring with genetic variation (genetically different from parents). Offspring inherit characteristics from both parents. Gametes (e.g., sperm, egg, pollen) contain half the genetic material (haploid). Formation of gametes via meiosis. Fusion of gametes restores the full set of chromosomes (diploid). 3. Asexual Reproduction Involves only one parent. Does not involve gametes or the mixing of genetic material. Results in genetically identical offspring (clones). Achieved through mitosis in eukaryotic organisms (plants, fungi). Achieved through binary fission in prokaryotic organisms (bacteria). ** CHAPTERS ** 0:00 Sexual vs Asexual Reproduction 0:18 Examples of Reproduction Types 0:33 Sexual Reproduction Explained 0:42 Fertilisation and Genetic Variation 1:06 Gametes (Sperm, Egg, Pollen) 1:39 Gamete Production (Meiosis) 1:46 Sexual Reproduction Without Intercourse 2:08 Asexual Reproduction 2:16 Characteristics 2:28 Mechanisms of Mitosis and Binary Fission ** PLAYLISTS **    • GCSE Maths (9-1)      • GCSE Biology (9-1)      • GCSE Chemistry (9-1)      • GCSE Physics (9-1)      • A-Level Biology   #GCSE #Biology #study #revision #school #exam #AQA #OCR #Edexcel #IGCSE