What you’ll learn8 learning objectivesChoose one objective for a focused lesson, or study the complete topic.16.1.1Haploid (n) and diploid (2n)• Haploid (n) and diploid (2n)Syllabus objective16.1.2Homologous pairs of chromosomes• Homologous pairs of chromosomesSyllabus objective16.1.3Reduction division• Need for reduction division during meiosis for gamete productionSyllabus objective16.1.4Chromosome behaviour during meiosis• Chromosome behaviour during meiosis: nuclear envelope, cell surface membrane, spindleSyllabus objective16.1.5Meiosis I and II stages• Main stages: prophase I, metaphase I, anaphase I, telophase I, prophase II, metaphase II, anaphase II, telophase IISyllabus objective16.1.6Meiosis image interpretation• Interpret photomicrographs and diagrams of meiosis stagesSyllabus objective16.1.7Genetic variation in meiosis• Crossing over and random orientation (independent assortment) produce genetically different gametesSyllabus objective16.1.8Random fertilisation and variation• Random fusion of gametes at fertilisation produces genetically different individualsSyllabus objective