Embryonic stem cells. Scientists make sperm in a dish.
Vogel
Gretchen
G
D000818:Animals; D002454:Cell Differentiation; D002455:Cell Division; D002469:Cell Separation; D002478:Cells, Cultured; D004622:Embryo, Mammalian / Q000166:cytology*; D005306:Fertilization; D018392:Genomic Imprinting; D008297:Male; D051379:Mice; D013094:Spermatozoa / Q000166:cytology* / Q000187:drug effects / Q000502:physiology; D013234:Stem Cells / Q000187:drug effects / Q000502:physiology*; D014212:Tretinoin / Q000494:pharmacology
D014212:Tretinoin