Which feature of meiosis ensures that the zygote is diploid?

17.4.1 Define meiosis as nuclear division giving rise to cells that are genetically different (details of stages are not required)

17.4.2 State that meiosis is involved in the production of gametes

17.4.3 Define meiosis as reduction division in which the chromosome number is halved from diploid to haploid resulting in genetically different cells (details of stages are not required)

17.4.4 Explain how meiosis produces variation by forming new combinations of maternal and paternal chromosomes (specific details are not required)