Results 81 to 90 of about 1,973,836 (223)
Use of a unique reporter cassette to examine 5´ to 3´ resection at a site specific DNA double-strand break during meiosis [PDF]
, 2006 Meiotic recombination in Saccharomyces cerevisiae is initiated by the formation of DNA double strand breaks (DSBs), which are created by Spoil protein.
Bishop-Bailey, Anna
core +3 more sources
Meiotic mutat томату controlling exit from meiosis
Фактори експериментальної еволюції організмів, 2013 Aims. This paper presents the results of cytological and genetic analysis of new meiotic mutant of tomato (Lycopersicon esculentum Mill.). Methods. Studies on meiosis in microsporogenesis were made in iron-acetocarmine smears of anther fixed in acetic ...
T. P. Lisovska +3 more
doaj
Andrology, EarlyView.Abstract Background It is well‐established that spermatogenesis, semen quality, and reproductive hormones are interlinked. It is, however, less well‐described how various specific testicular histopathologies are linked to reproductive hormones and semen quality.
Gülizar Saritas +6 more
wiley +1 more source
Meiosis in a living crane fly spermatocyte [Meiosis I]
, 2011 Presents the events of meiosis I in a living spermatocyte obtained from the testis of a crane-fly larva are recorded in this time-lapse sequence beginning at diakinesis through telophase to the near completion of cytokinesis following meiosis I ...
Oldenbourg, Rudolf +1 more
core +2 more sources
Cytokinesis in Drosophila male meiosis
, 2012 Cytokinesis separates the cytoplasm and the duplicated genome into two daughter cells at the end of cell division. This process must be finely regulated to maintain ploidy and prevent tumor formation.
Sechi S +4 more
core +2 more sources
The use of deidentified organ donor testes for research
Andrology, EarlyView.Abstract Our knowledge of testis development and function mainly comes from research using mammalian model organisms, primarily the mouse. However, there are integral differences between men and other mammalian species regarding cellular composition and expression profiles during fetal and post‐natal testis development and in the mature testis ...
Marina V. Pryzhkova +4 more
wiley +1 more source
, 2008 Meiosis, the form of cell division unique to egg and sperm production, sets the stage for sex determination by creating sperm that carry either an X or a Y sex chromosome.Componente Curricular::Ensino Médio::BiologiaComponente Curricular::Educação ...
Howard Hughes Medical Institute (HHMI)
core
Chromosome segregation and recombination in human meiosis: Clinical applications and insight into disjunction errors [PDF]
, 2015 Chromosome copy number errors (or aneuploidy) of gametes and embryos occurs in humans more frequently than in any other studied species, with a spectrum of manifestations from implantation failure to affected live births.
Ottolini, Christian Simon +1 more
core
Meiosis in a living crane fly spermatocyte [Meiosis I]
, 2016 Presents the events of meiosis I in a living spermatocyte obtained from the testis of a crane-fly larva are recorded in this time-lapse sequence beginning at diakinesis through telophase to the near completion of cytokinesis following meiosis I ...
Oldenbourg, Rudolf +1 more
core +2 more sources
The role of iron in normal and impaired testicular function
Andrology, EarlyView.Abstract Iron plays a critical role in testicular physiology, impacting spermatogenesis, testosterone production, and overall testicular function. Iron homeostasis is maintained through systemic and cellular regulatory mechanisms, including hepcidin‐mediated systemic iron control and the iron‐responsive element/iron regulatory protein (IRE/IRP) system ...
Aileen Harrer +2 more
wiley +1 more source