Lesson
Lesson-3.2.17- understand how random fertilisation produces genetic variation of offspring.
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Lesson-3.2.16- 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.PreviousLesson-3.2.18- know that in human cells the diploid number of chromosomes is 46 and the haploid number is 23.Next