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  • Human embryo grades
  • Human embryo for IVF
  • Human embryo for IVF
  • Human embryo for IVF
  • Human embryo for IVF
  • Human embryo from IVF
  • Location of cyclin in 2-cell human embryo
  • Location of cyclin in 2-cell human embryo
  • Location of cyclin in 2-cell human embryo
  • F.M. van Helmont, Development of human embryo.
  • Human embryo, two figures: above, the foetus at nine weeks, below, the foetus at twelve weeks, shown enclosed in the amnion. Lithograph after Erdl, 1850/1900?.
  • Formation of the human foetus: five figures, showing the development from embryo at conception, to foetus of four months gestation. Colour engraving by J. Pass after D. Dodd, 1794.
  • Similarities of the embryos of a human and a dog, fig 1 p. 10, part I of The Descent of Man by Charles Darwin, London, John Murray, 1875
  • Human embryonic stem cell (gold) growing on a layer of supporting cells (fibroblasts). Stem cells are derived from very early embryos and can either be grown to stay in their original state or triggered to form almost any type of human cell. The fibroblasts provide special factors that maintain the stem cells in their original state. The stem cell appears to be grasped by the underlying fibroblast. Stem cell research could lead to cures for many diseases such as Parkinson's disease, Alzheimer's and diabetes, where a patient's cells are damaged or absent.
  • Location of cyclin in maturing human egg
  • Location of cyclin in maturing human egg
  • Human blastocyst hatching
  • Icones embryonum humanorum.
  • Icones embryonum humanorum.
  • Icones embryonum humanorum.
  • Scheme for in vitro fertilisation
  • Embryo manipulation equipment
  • Embryo manipulation equipment
  • Embryo biopsy lab
  • Embryo biopsy lab
  • Embryo biopsy lab
  • Embryo biopsy lab
  • Derivation of embryonic stem cells
  • Derivation of embryonic stem cells
  • FISH showing chromosome 18