Results 51 to 60 of about 12,452,954 (349)

Detection of chromosome aberrations in the human interphase nucleus by visualization of specific target DNAs with radioactive and non-radioactive in situ hybridization techniques: diagnosis of trisomy 18 with probe L1.84 [PDF]

open access: yes, 1986
The localization of chromosome 18 in human interphase nuclei is demonstrated by use of radioactive and nonradioactive in situ hybridization techniques with a DNA clone designated L1.84.
A. Brückner   +33 more
core   +1 more source

Chromosome positioning is largely unaffected in lymphoblastoid cell lines containing emerin or A-type lamin mutations [PDF]

open access: yes, 2005
Gene-poor human chromosomes are reproducibly found at the nuclear periphery in proliferating cells. There are a number of inner nuclear envelope proteins that may have roles in chromosome location and anchorage, e.g. emerin and A-type lamins.
Bridger, JM   +3 more
core   +1 more source

Evolutionary implications of heterochromatin and rDNA in chromosome number and genome size changes during dysploidy: A case study in Reichardia genus

open access: yesPLoS ONE, 2017
In this study we showed that constitutive heterochromatin, GC-rich DNA and rDNA are implicated in chromosomal rearrangements during the basic chromosome number changing (dysploidy) in Reichardia genus.
S. Siljak-Yakovlev   +5 more
semanticscholar   +1 more source

Induction of chromosome shattering by ultraviolet light and caffeine: The influence of different distributions of photolesions [PDF]

open access: yes, 1986
Cells of synchonized and of asynchronously growing cultures of a V79 Chinese hamster line were microirradiated with a low poweer laser-UV-microbeam of wavelength 257 nm.
Barranco   +42 more
core   +1 more source

Chromosome counts of some Zingiberaceous species from Thailand [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2002
The data on chromosome numbers of 22 species belonging to 10 genera of Zingiberaceae distributed in Thailand were investigated. The somatic numbers range from 20 to 48 showing diploidy and polyploidy.
Ladda Eksomtramage   +3 more
doaj  

Positional and functional mapping of a neuroblastoma differentiation gene on chromosome 11 [PDF]

open access: yes, 2005
Background: Loss of chromosome 11q defines a subset of high-stage aggressive neuroblastomas. Deletions are typically large and mapping efforts have thus far not lead to a well defined consensus region, which hampers the identification of positional ...
De Preter, K   +13 more
core   +3 more sources

Circumnutation in the growth of Chara rhizoids

open access: yesActa Societatis Botanicorum Poloniae, 2014
The chromosome numbers of 24 species of Achillea L. were determined, among them 4 for the first time (A. chamaemelifolia, A. sulphurea, A. teretifolia, A. vermicularis). A tetraploid form of A. lingulata was found for the first time. The occurrence of di-
Janina Dąbrowska
doaj   +1 more source

Cytogenetic study and pollen viability of three populations of Diplotaxis harra (Brassicaceae) in Iran [PDF]

open access: yesJournal of Cell and Molecular Research, 2014
In this study, we examined the chromosome number, detailed male meiosis, microsporogenesis, pollen fertility and distribution of cytotypes of Diplotaxis harra (Forssk.) Boiss. This is the first cytogenetic report of the taxon.
Massoud Ranjbar, Somayeh Karami
doaj   +1 more source

Cytogenetic study of two Solenanthus Ledeb. species (Boraginaceae) in Iran [PDF]

open access: yesJournal of Cell and Molecular Research, 2013
Chromosome number, meiotic behavior, and pollen viability were analyzed in 2 species of genus Solenanthus, S. stamineus (Desf.) Wettst. and S. circinnatus Ledeb, from Iran. This report is the first cytogenetic analysis of these species.
Massoud Ranjbar   +2 more
doaj   +1 more source

CENH3-GFP: a visual marker for gametophytic and somatic ploidy determination in Arabidopsis thaliana [PDF]

open access: yes, 2016
Background: The in vivo determination of the cell-specific chromosome number provides a valuable tool in several aspects of plant research. However, current techniques to determine the endosystemic ploidy level do not allow non-destructive, cell-specific
Angenon, Geert   +4 more
core   +5 more sources

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