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Caption: The zygote is the cell resulting from the fertilization. It contains 46 chromosomes, half of which are contributed by an ovum and the other half by a sperm cell. Some 24 hours after fertilization, the zygote divides into two identical cells, which will continue to divide for 3 to 4 days before migrating towards the uterine cavity.
Credit: Album / Universal Images Group
Image size: 2400 × 2358 px | 16.2 MB
Print size: 20.3 × 20.0 cm | 944.9 × 928.3 in (300 dpi)