Results 371 to 380 of about 316,768 (413)
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Trends in Genetics, 1994
Since its identification in 1927, the mouse T (Brachyury) locus has been implicated in mesoderm formation and notochord differentiation. Recent work has demonstrated that this gene encodes a putative transcription factor expressed specifically in nascent mesoderm and in the differentiating notochord.
Andreas Kispert, Bernhard G. Herrmann
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Since its identification in 1927, the mouse T (Brachyury) locus has been implicated in mesoderm formation and notochord differentiation. Recent work has demonstrated that this gene encodes a putative transcription factor expressed specifically in nascent mesoderm and in the differentiating notochord.
Andreas Kispert, Bernhard G. Herrmann
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Journal of Urology, 1975
Gross and microscopic examination of 46 consecutive male therapeutic abortion specimens, ranging in size from 60 to 180 mm. crown-rump, demonstrated that 89 per cent of the fetuses had some ventral curvature of the penis. Athough presumably all penises are ventrally curved through the tenth week of gestation, in our study this curvature was most ...
George W. Kaplan, Donald L. Lamm
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Gross and microscopic examination of 46 consecutive male therapeutic abortion specimens, ranging in size from 60 to 180 mm. crown-rump, demonstrated that 89 per cent of the fetuses had some ventral curvature of the penis. Athough presumably all penises are ventrally curved through the tenth week of gestation, in our study this curvature was most ...
George W. Kaplan, Donald L. Lamm
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Embryogenesis of holoprosencephaly
American Journal of Medical Genetics Part A, 2007AbstractHoloprosencephaly (HPE) is a malformation of the human brain caused primarily by incomplete division of the prosencephalon into two halves and is often associated with various facial anomalies. Although HPE is rather rare in newborns (1/10,000–15,000 births), it is frequently encountered in therapeutic abortuses (>1/250).
Shigehito Yamada +3 more
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Nature, 1970
A simple order-of-magnitude calculation suggests that diffusion may be the underlying mechanism in establishing morphogenetic gradients in embryonic development.
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A simple order-of-magnitude calculation suggests that diffusion may be the underlying mechanism in establishing morphogenetic gradients in embryonic development.
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Science, 2017
Developmental Biology Pluripotent embryonic stem cells (ESCs) can differentiate into any adult cell type; however, aggregates of these cells do not mimic embryonic architecture when grown in culture. To see whether mouse ESCs and their extraembryonic counterparts, trophoblast stem cells (TSCs), can recapitulate normal development, Harrison et al ...
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Developmental Biology Pluripotent embryonic stem cells (ESCs) can differentiate into any adult cell type; however, aggregates of these cells do not mimic embryonic architecture when grown in culture. To see whether mouse ESCs and their extraembryonic counterparts, trophoblast stem cells (TSCs), can recapitulate normal development, Harrison et al ...
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2008
Somatic embryogenesis, the process in which embryos, similar in morphology to their zygotic counterparts, are induced to develop in culture from somatic cells, is a suitable model system for investigating the regulation of embryo development. Through this process, a large number of embryos at defined stages of development can easily be obtained ...
Sara, von Arnold, David, Clapham
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Somatic embryogenesis, the process in which embryos, similar in morphology to their zygotic counterparts, are induced to develop in culture from somatic cells, is a suitable model system for investigating the regulation of embryo development. Through this process, a large number of embryos at defined stages of development can easily be obtained ...
Sara, von Arnold, David, Clapham
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2008
Embryogenesis in higher plants consists of two major phases, morphogenesis and maturation. Morphogenesis involves the establishment of the embryo's body plan, whereas maturation involves cell expansion and accumulation of storage macromolecules to prepare for desiccation, germination and early seedling growth.
Soomin, Park, John J, Harada
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Embryogenesis in higher plants consists of two major phases, morphogenesis and maturation. Morphogenesis involves the establishment of the embryo's body plan, whereas maturation involves cell expansion and accumulation of storage macromolecules to prepare for desiccation, germination and early seedling growth.
Soomin, Park, John J, Harada
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Science, 2017
We are at an early stage of developing embryos from stem cells in ...
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We are at an early stage of developing embryos from stem cells in ...
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Somatic Embryogenesis in Grapevine
2001Somatic embryogenesis has been defined as the initiation of embryos from plant somatic tissues closely resembling their zygotic counterparts (Ammirato, 1983). This morphologic event has been documented as occurring spontaneously in some plant species (Yarbrough, 1932; Taylor, 1967), however it is usually induced in tissue cultures, potentially from ...
Martinelli L, Gribaudo I
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Embryogenesis and Angiogenesis
1997This chapter provides an overview of embryogenesis and angiogenesis processes. During embryogenesis, the development of new microvessels from in situ differentiating endothelial cells is referred to as vasculogenesis, and subsequent sprouting from existing vessels is referred to as angiogenesis.
Gregory J. del Zoppo, Masafumi Tagaya
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