Speed, R M Meiotic configurations in female trisomy 21 foetuses. [electronic resource] - Human genetics 1984 - 176-80 p. digital Publication Type: Comparative Study; Journal Article ISSN: 0340-6717 Standard No.: 10.1007/BF00286596 doi Subjects--Topical Terms: AmniocentesisChromosomes, Human, 21-22 and Y--ultrastructureDown Syndrome--geneticsFemaleFetusHumansMeiosisMicroscopy, ElectronOocytes--cytology