IGCSE Biology - 3b Inheritance - Cell Division

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New Edexcel IGCSE 9-1 4BI1 syllabus for 2017 first examined in 2019


Section 3b Inheritance - Cell Division


  • 3.28 understand how division of a diploid cell by mitosis produces two cells that contain identical sets of chromosomes
  • 3.29 understand that mitosis occurs during growth, repair, cloning and asexual reproduction
  • 3.30 understand how division of a cell by meiosis produces four cells, each with half the number of chromosomes, and that this results in the formation of genetically different haploid gametes
  • 3.31 understand how random fertilisation produces genetic variation of offspring
  • 3.32 know that in human cells the diploid number of chromosomes is 46 and the haploid number is 23


New and updated resource for IGCSE 9-1- More practical pages, updated design, concept checker and exam style question for each topic.