Results 81 to 90 of about 499,830 (212)

Unscheduled DNA synthesis after partial UV irradiation of the cell nucleus [PDF]

open access: yes, 1979
Cells of an euploid strain of the Chinese hamster synchronized in the G1 phase were microirradiated in the nucleus with a laser UV microbeam (λ = 257 nm) and pulse-labelled with [3H]thymidine. In autoradiographs of cells fixed immediately after the pulse
Cremer, Thomas   +3 more
core   +1 more source

Unanswered Questions Regarding Sex and BMP/TGF-β Signaling

open access: yesJournal of Developmental Biology, 2018
Crosstalk between the BMP and TGF-β signaling pathways regulates many complex developmental processes from the earliest stages of embryogenesis throughout adult life. In many situations, the two signaling pathways act reciprocally. For example, TGF-&
Tapan A. Shah, Melissa B. Rogers
doaj   +1 more source

Contrasting roles of condensin I and condensin II in mitotic chromosome formation [PDF]

open access: yes, 2012
© 2012. Published by The Company of Biologists LtdIn vertebrates, two condensin complexes exist, condensin I and condensin II, which have differing but unresolved roles in organizing mitotic chromosomes.
Choo, KH   +13 more
core   +1 more source

ISOLATED CHROMOSOMES [PDF]

open access: yesJournal of General Physiology, 1947
A E, Mirsky, H, Ris
openaire   +2 more sources

Chromosome condensation in mitosis and meiosis of rye (Secale cereale L.) [PDF]

open access: yes, 2004
Structural investigation and morphometry of meiotic chromosomes by scanning electron microscopy (in comparison to light microscopy) of all stages of condensation of meiosis I + II show remarkable differences during chromosome condensation in mitosis and ...
Herrmann, Reinhold G.   +2 more
core   +1 more source

The genus Rubus (Rosaceae) in South Africa. IV. Natural hybridiza­ tion

open access: yesBothalia: African Biodiversity & Conservation, 1987
The genus  Rubus L. is represented in southern Africa by the subgenera  Eubatus Focke and  Idaeobatus Focke. A combination o f morphological data, data on the reproductive systems of some collections and meiotic chromosome behaviour indicates that a ...
J. J. Spies   +2 more
doaj   +1 more source

Chromosomes synthétiques: synthetic chromosomes: rewriting the code of life [PDF]

open access: yes, 2019
The past decade has seen vast improvements in DNA synthesis and assembly methods. The creation of synthetic DNA molecules is becoming easier and more affordable, such that entire chromosomes can now be synthesized.
Fabien Labroussaa   +11 more
core   +1 more source

Comparative chromosome and molecular studies of some species of genus Arum from eastern Slavonia and Baranya region in Croatia

open access: yesActa Societatis Botanicorum Poloniae, 2011
Karyological and molecular studies were done in this paper on three species of genus Arum; Arum italicum Mill. and Arum maculatum L., with two varieties, and Arum alpinum Schott and Kotschy, also with two varieties.
Mirjana Sabo   +5 more
doaj   +1 more source

Specific metaphase and interphase detection of the breakpoint region in 8q24 of burkitt lymphoma cells by triple-color fluorescence in situ hybridization [PDF]

open access: yes, 1992
Triple fluorescence in situ hybridization with a plasmid DNA library from sorted human chromosomes 8 in combination with bacteriophage clones flanking the breakpoint in 8q24 of the Burkitt lymphoma cell line Jl was used for the specific delineation of ...
Thomas Ried   +23 more
core   +1 more source

Effects of pentoxifylline on mouse oocytes maturation and qualityin vitro [PDF]

open access: yesIranian Journal of Basic Medical Sciences
Objective(s): To investigate the impact of Pentoxifylline (PTX) on the in vitro maturation (IVM) of mouse oocytes and its effect on oocyte quality.Materials and Methods: This experimental study involved culturing mouse oocytes in an IVM medium with ...
Wu Junjiao, Wu Jianbo, Yanyan Xu
doaj   +1 more source

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