Edexcel IGCSE Biology Double Award Revision
A guide to the Edexcel IGCSE Biology Double Award Syllabus for 2020
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Wednesday, 29 June 2016
3.23 know that in human cells the diploid number of chromosomes is 46 and the haploid number is 23
3.23 •diploid cells describe cells with a full set of chromosomes, which is 46 in humans
•gametes are haploid - they have half the number of chromosomes in a normal cell (23)
because gametes are from a ‘parent’
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