Sexual and Asexual Reproduction: Continuity and Variation | Year 12 Biology

Full lesson, notes and practice questions: https://hscscience.com.au/subjects/bi... Explain how passing on DNA and producing offspring that survive to reproduce keep a species going. Compare sexual and asexual reproduction by variation, speed, partners and energy, then use changing conditions to judge which method helps. The Cavendish banana and TR4 disease show why shared DNA can become a shared weakness. 0:00 What keeps a species going? 1:06 Asexual reproduction 1:47 Gametes and sexual reproduction 2:23 Why variation matters 3:17 Comparing the trade-offs 4:14 Worked comparison 5:18 Practice question 6:20 Working through the answer 7:37 Key notes Biology 2017: Year 12 Module 5, Heredity. Supports sexual and asexual mechanisms of reproduction and continuity of a species. Syllabus dotpoint (NSW Biology Stage 6, 2017, Module 5): "explain the mechanisms of reproduction that ensure the continuity of a species, by analysing sexual and asexual methods of reproduction in a variety of organisms, including but not limited to: animals: advantages of external and internal fertilisation plants: asexual and sexual reproduction fungi: budding, spores bacteria: binary fission (ACSBL075) protists: binary fission, budding" Official 2017 course: https://www.nsw.gov.au/education-and-... Prerequisite: Cells contain DNA that carries inherited information. Next: How animals bring sperm and egg together. #Year12Biology #Reproduction #HSCScience