Results 231 to 240 of about 121,926 (279)
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Xenopus borealis misidentified as Xenopus mulleri
Developmental Biology, 1977Abstract A species of frogs described in publications from our laboratory between 1971 and 1976 as Xenopus mulleri is in fact Xenopus borealis.
D D, Brown, I B, Dawid, R H, Reeder
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Studies on immunoglobulins of Xenopus borealis, Xenopus clivii and Xenopus muelleri
Journal of Experimental Zoology, 1976AbstractFollowing immunization with human IgG three species of anuran amphibians, Xenopus borealis, Xenopus clivii and Xenopus muelleri, were found to synthesize two molecular populations of antibodies associated with 19S and 7S fractions of the sera. These antibodies, designated high (HMW) and low (LMW) molecular weight immunoglobulins, were isolated ...
I, Hadji-Azimi +3 more
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The ultrastructure of Xenopus spermatozoon
Journal of Ultrastructure and Molecular Structure Research, 1986Abstract The spermatozoon of Xenopus consists of a coiled head 20 μm long and of a tail 40 μm long. The acrosome is a thin vesicle capping the anterior region of the nucleus. A manchette of mitochondria surrounds the posterior region of the nucleus, the two centrioles, and the beginning of the flagellum.
BERNARDINI, GIOVANNI BATTISTA +2 more
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Annual Review of Immunology, 1989
Presentation des elements du systeme immunitaire de Xenopus: systeme lymphoide, systeme d'histocompatibilite majeur, immunoglobuline. Le fonctionnement de ce systeme est considere (reponse immune, tolerance, diversite des anticorps) ainsi que son developpement.
L, Du Pasquier +2 more
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Presentation des elements du systeme immunitaire de Xenopus: systeme lymphoide, systeme d'histocompatibilite majeur, immunoglobuline. Le fonctionnement de ce systeme est considere (reponse immune, tolerance, diversite des anticorps) ainsi que son developpement.
L, Du Pasquier +2 more
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Nature, 1958
IN several genera of the order Anura supernumerary limbs occur naturally1. They are usually extra hind limbs2. Polymely does not appear to have been reported in the genus Xenopus. The female toad (Xenopus laevis) described here came with a consignment of toads imported from South Africa in 1956. The toad measured 8.0 cm.
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IN several genera of the order Anura supernumerary limbs occur naturally1. They are usually extra hind limbs2. Polymely does not appear to have been reported in the genus Xenopus. The female toad (Xenopus laevis) described here came with a consignment of toads imported from South Africa in 1956. The toad measured 8.0 cm.
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Husbandry of Xenopus tropicalis
2012Xenopus tropicalis combine the advantages of X. laevis, for example using explants and targeted gain of function, with the ability to take classical genetics approaches to answering cell and developmental biology questions making it arguably the most versatile of the model organisms. Against this background, husbandry of X.
Jafkins, Alan +4 more
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Trends in Cardiovascular Medicine, 1994
The amphibian embryo provides a convenient experimental system with which to study myogenesis. The earliest steps in the formation of axial and cardiac muscle are accessible for investigation using both embryological and molecular approaches. We review the origins of skeletal and cardiac muscle in the Xenopus embryo, the molecular markers available to ...
MOHUN T +3 more
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The amphibian embryo provides a convenient experimental system with which to study myogenesis. The earliest steps in the formation of axial and cardiac muscle are accessible for investigation using both embryological and molecular approaches. We review the origins of skeletal and cardiac muscle in the Xenopus embryo, the molecular markers available to ...
MOHUN T +3 more
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1997
Publisher Summary This chapter discusses the xenopus replication assays. It describes the preparation and use of both Xenopus egg extracts and templates for in vitro DNA replication. This chapter outlines a range of methods commonly employed to assay DNA replication.
M A, Madine, D, Coverley
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Publisher Summary This chapter discusses the xenopus replication assays. It describes the preparation and use of both Xenopus egg extracts and templates for in vitro DNA replication. This chapter outlines a range of methods commonly employed to assay DNA replication.
M A, Madine, D, Coverley
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The developmental mutants of Xenopus
The International Journal of Developmental Biology, 1992The 32 developmental mutants found in our laboratory have appeared in the course of the genetic analysis of adult Xenopus laevis issued from nuclear transfers, and of their progeny. These experiments originally were devised more than thirty years ago to test whether somatic nuclei had undergone irreversible changes during differentiation or whether ...
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1993
Abstract Amphibian embryos have a prominent place among the species used to study vertebrate embryonic development. There is a long and distinguished history of experimental manipulations that were carried out in salamanders and newts.
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Abstract Amphibian embryos have a prominent place among the species used to study vertebrate embryonic development. There is a long and distinguished history of experimental manipulations that were carried out in salamanders and newts.
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