Zygote as a Result of Fertilization : Formation of a zygote. View is from within the cytoplasm of an oocyte. The nucleus of the sperm, which contains 23 paternal chromosomes, fuses with the nucleus of the ovum, containing 23 maternal chromosomes, to restore the diploid number (46 chromosomes) therefore creating a diploid zygote. Once the fusion is complete, fertilization is complete.
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