Schematic Image of Human Egg Development in Laboratory (IMAGE)
Caption
Step one: very small, immature human eggs within ovarian tissue are placed in culture in the lab, and begin to develop Step two: after initial development, eggs have grown and are more than double their initial size. The ovarian follicles that contain the eggs are separated before further growth and monitoring Step three: eggs and their surrounding cells are removed from liquid culture to undergo further development in a nutrient-rich membrane Step four: well-developed, mature eggs are ready for fertilisation
Credit
Prof Evelyn Telfer and Dr Marie McLaughlin, the University of Edinburgh
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