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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.

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Showing 1 to 20 of 152 for “"spermatogenesis"”.

  1. Spermatogenesis in sunfish

    Bright, William MiltonUniversity of Illinois Urbana-Champaign1937

    uiuc Repository record

  2. Prospects for monitoring spermatogenesis

    Turner, Katie JaneThe University of Edinburgh1996

    edinburgh Repository record

  3. Spermatogenesis of the meadow vole (Microtus pennsylvanicus) and a comparative study of rodent spermatogenesis

    Beach, EdithUniversity of Kansas1930

    Thesis (M.A.)--University of Kansas, Zoology, 1930.

    ku Repository record

  4. The spermatogenesis of Sceloporus undulatus

    MacMorland, Edward ElliottUniversity of Missouri--Columbia1915

    Text taken from page 8 of the Introduction section of this thesis: The present research was undertaken in the spring of 1913 at the suggestion of Dr. George Lefevre and is an attempt at tracing the behavior of the chromosomes in the common fence swift, Sceloporus undulatus.

    missouri Repository record

  5. Coregulatory Transcription Factors and Spermatogenesis

    Morrow, Carla K.University of Illinois at Urbana-Champaign2015

    The BTB was hypothesized to be deficient in Etv5 -/- mice, and that this was mediated by Claudin 5 (CLD5). In both Etv5-/- and W/Wnu mice, the BTB was leaky. Examination of CLD5 expression among mice of various ages and phenotypes revealed the following: both ETV5 and germ cells were necessary for …

    uiuc Repository record

  6. Spermatogenesis in the sand crab Emerita Analoga

    Menesini, Mario Martin2018

    … has been used by the writer for studies on spermatogenesis and on spermatozoan behavior during the summer or 1951, 1952, and 1953 at the Pacific Marine Station.</p>

    u-pacific Repository record

  7. Equine Spermatogenesis: Meiotic Chromosome Behavior and Recombination

    Al-Jaru, Ayman IUniversity of Central Lancashire2010

    Studying the spermatogenesis of horse is beneficial for the horse industry by identifying the causes of chromosomal abnormalities, which cause embryonic loss, congenital abnormalities and infertility. Little is known about the spermatogenesis in horse. This is the first report that investigates the …

    cent-lancashire Repository record

  8. Characterization of the Genes Essential for Mouse Spermatogenesis

    Wu, Qiuxia2012

    Spermatogenesis is a complex process that starts with the proliferation of differentiated spermatogonia through mitotic division. Primary spermatocytes produced from differentiated spermatogonia enter the prolonged prophase of meiosis during which DNA is exchanged by homologous recombination. …

    unr Repository record

  9. Additional Peculiarities in the Spermatogenesis of Phrynotettix Magnus

    Wenrich, David HenryUniversity of Kansas1912

    ku Repository record

  10. An Ultrastructural Study of Spermatogenesis in Lycopodium Cernuum

    Robbins, Robert RaymondUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-14T13:23:14Z (GMT). No. of bitstreams: 1 7715008.pdf: 8058712 bytes, checksum: 1a995857208077858a79cd502213dd5d (MD5) Previous issue date: 1977

    uiuc Repository record

  11. A study of the spermatogenesis in frog rana rugulosa

    WONG, Chi Chuen

    lingnan Repository record

  12. Towards a Molecular Genetic Analysis of Spermatogenesis in Drosophila

    Gonczy, Pierre

    <p>Spermatogenesis is an evolutionarily conserved developmental program, which entails a sequence of fundamental biological processes: stem cell division, restricted mitotic proliferation, meiosis and morphogenetic reorganization. We have initiated a molecular genetic dissection of the early steps …

    rockefeller Repository record

  13. The Ultrastructure of Spermatogenesis in The Liverwort, Marchantia Polymorpha

    Kreitner, Gerald LeeUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-09T22:25:54Z (GMT). No. of bitstreams: 1 7021003.pdf: 5868686 bytes, checksum: 0bd7e2162c869f8c393ff5d248714ed4 (MD5) Previous issue date: 1970

    uiuc Repository record

  14. The role of Cdyl and CDY in mammalian spermatogenesis

    Potash, JesseMassachusetts Institute of Technology2006

    … to have an important role in male fertility and spermatogenesis. However, human studies have not yet been able to directly implicate CDY in male infertility. Even though mouse Cdyl is not located on the Y chromosome, it is the closest known mouse homologue of human CDY and is expressed highly in …

    mit Repository record

  15. ATM plays multiple roles in crossover regulation during mouse spermatogenesis

    Larios, Emely, <p><a href="http://www.orcid.org/0000-0001-9672-2312" target="_blank">http://www.orcid.org/0000-0001-9672-2312</a></p>2027

    <p>During meiosis, each pair of homologous chromosomes must have at least one crossover recombination event, or they risk randomly segregating, leading to aneuploidy—a major cause of infertility, miscarriage, and birth defects. In humans, approximately 1 in 20 sperm and 1 in 4 oocytes are aneuploid …

    uthsc Repository record

  16. Personalised Risk Assessment of Low-dose Radiation Effects on Spermatogenesis

    Fukunaga, HisanoriQueen's University Belfast2019

    … for the effects of low-dose radiation on spermatogenesis, we investigated significant alterations in spermatogenesis in response to non-uniform radiation distributions at low doses and estimated the genetic diversity of radiation sensitivity at the population level. To investigate …

    qu-belfast Repository record

  17. An Ultrastructural Study of Spermatogenesis in Phaeoceros Laevis Subsp. Carolinianus

    Moser, John WilliamUniversity of Illinois at Urbana-Champaign2014

    Made available in DSpace on 2014-12-11T18:28:18Z (GMT). No. of bitstreams: 1 7114882.pdf: 4823813 bytes, checksum: e8b2a61873c4abbecdd6288dce1dff74 (MD5) Previous issue date: 1970

    uiuc Repository record

  18. Expression and function of basigin during early pregnancy and spermatogenesis

    Bi, JiajiaUniversity of Illinois at Urbana-Champaign2013

    … between gametes and Sertoli cells during spermatogenesis. BSG protein was expressed in the uterine epithelium at estrus in βERKO mice but not in αERKO mice. However, a higher level of Bsg mRNA was observed in the uteri of αERKO mice as compared with wild type (WT) and βERKO mice. In the …

    uiuc Repository record

  19. The Small GTPase Rheb Is Required for Spermatogenesis but not Oogenesis

    Baker, Michael David2016

    … and have identified an essential role in spermatogenesis. Conditional knockout (cKO) of Rheb in the male germline resulted in severe oligoasthenoteratozoospermia and male sterility. More detailed phenotypic analyses uncovered an age-dependent meiotic progression defect combined with …

    utswmed Repository record

  20. Ubiquitin Conjugase UBE2K Is Essential for Normal Rat Development and Spermatogenesis

    Chaudhary, Jaideep2018

    … in meiotic transcriptional control during spermatogenesis.

    utswmed Repository record

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