Results 71 to 80 of about 123,490 (101)

Rapid metaphase and interphase detection of radiation-induced chromosome aberrations in human lymphocytes by chromosomal suppression in situ hybridization [PDF]

open access: yes, 1990
Chromosomal in situ suppression (CISS)-hybridization of biotinylated phage DNA-library inserts from sorted human chromosomes was used to decorate chromosomes 1 and 7 specifically from pter to qter and to detect structural aberrations of these chromosomes
Cremer, Thomas   +9 more
core   +1 more source

A specific insertion of a solo-LTR characterizes the Y chromosome of Bryonia dioica (Cucurbitaceae) [PDF]

open access: yes, 2010
Background: Relatively few species of flowering plants are dioecious and even fewer are known to have sex chromosomes. Current theory posits that homomorphic sex chromosomes, such as found in Bryonia dioica (Cucurbitaceae), offer insight into the early ...
Silber, Martina V.   +8 more
core   +1 more source

New contributions to the study of Corixoidea: cytogenetic characterization of three species of Sigara from Argentina and the plausible mechanisms of karyotype evolution within Nepomorpha Nuevas contribuciones al estudio de Corixoidea: caracterización citogenética de tres especies de Sigara de Argentina y los posibles mecanismos de evolución del cariotipo en Nepomorpha

open access: yesRevista de la Sociedad Entomológica Argentina, 2007
Cytogenetic studies in Heteroptera contribute to the analysis of evolutionary trends within the group. Heteroptera are characterized by the possession of holokinetic chromosomes, different sex chromosome mechanisms and a pair of m chromosomes in some ...
María José Bressa   +1 more
doaj  

Chromosomal aberrations in transitional cell carcinoma that are predictive of disease outcome are independent of polyploidy [PDF]

open access: yes, 1999
Objective To determine whether aneusomy for chromosomes 7, 9 and 17 (reported to predict recurrence in up to 65% of patients with superficial transitional cell bladder cancer and thus providing the opportunity for early and effective treatment) reflects ...
Watters, A.D.   +4 more
core   +1 more source

Structure and Evolution of Ribosomal Genes of Insect Chromosomes

open access: yesInsects
Currently, clusters of 45S and 5S ribosomal DNA (rDNA) have been studied in about 1000 and 100 species of the class Insecta, respectively. Although the number of insect species with known 45S rDNA clusters (also referred to as nucleolus-organizing ...
Vladimir E. Gokhman   +1 more
doaj   +1 more source

Analysis of chromosome positions in the interphase nucleus of Chinese hamster cells by laser-UV-microirradiation experiments [PDF]

open access: yes, 1982
Unsynchronized cells of an essentially diploid strain of female Chinese hamster cells derived from lung tissue (CHL) were laser-UV-microirradiated (=257 nm) in the nucleus either at its central part or at its periphery.
Cremer, Thomas   +8 more
core   +1 more source

Phosphorylation of Histone H3S10 in Animal Chromosomes: Is There a Uniform Pattern?

open access: yes, 2011
Phosphorylation of serine 10 in histone H3 (H3S10ph) has been extensively analyzed and appears to be a conserved chromatin change associated with chromosome condensation in different eukaryotic organisms.
M.J. de Souza   +10 more
core   +1 more source

Atomic-force microscopy of plant chromosomes

open access: yes, 1995
Atomic force microscopy has been used to image plant chromosomes from standard preparations without staining or coating. This has enabled the collection of high-resolution three-dimensional data on surface structure.
Winfield, M.   +3 more
core   +1 more source

The effect of genes on A and B chromosomes of a number of Triticinae on meiotic behaviour in Triticum aestivum and its hybrids with related species [PDF]

open access: yes, 1979
Results obtained and hypotheses that have been put forward to integrate them, are summarized in this section.1. Studies of chromosome association in F 1 hybrids Triticum aestivum X Secale cereale with and without chromosome 5B and in the presence or in ...
Viegas, W.S.
core  

The Evolution of Mammalian X Chromosomes and X Chromosome Inactivation

open access: yes, 2015
For many years it was thought that the X chromosome in all three major lineages of mammals (monotremes, marsupials and eutherians) had a shared evolutionary history.
Rodriguez Delgado, Claudia   +1 more
core  

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