Results 121 to 130 of about 1,000,594 (265)

Locations of chromosomal proteins in polytene chromosomes.

open access: yesProceedings of the National Academy of Sciences, 1976
D1, a nonhistone chromosomal protein rich in both basic and acidic amino acids, has been localized at a limited number of specific loci in polytene chromosomes of Drosophila melanogaster. H2B, a nucleosomal histone, and H1, a nonnucleosomal histone, are both found throughout most chromosomal regions.
Candido Rodriguez Alfageme   +2 more
openaire   +4 more sources

Excluded volume effect enhances the homology pairing of model chromosomes [PDF]

open access: yesarXiv, 2015
To investigate the structural dynamics of the homology pairing of polymers, we mod- eled the scenario of homologous chromosome pairings during meiosis in Schizosaccharomyces pombe, one of the simplest model organisms of eukaryotes. We consider a simple model consist- ing of pairs of homologous polymers with the same structures that are confined in a ...
arxiv  

A cytogenetic study of couples with repeated spontaneous abortions

open access: yesAnnals of Saudi Medicine, 2011
Background and Objective : The frequency of chromosomal aberrations in Iran is not definitely known. This study determined the frequency of chromosomal aberrations in a series of couples with two or more spontaneous abortions and compared the findings ...
Niroumanesh Shirin   +3 more
doaj  

Internet-Based Abnormal Chromosomal Diagnosis During Pregnancy Using a Noninvasive Innovative Approach to Detecting Chromosomal Abnormalities in the Fetus: Scoping Review

open access: yesJMIR Bioinformatics and Biotechnology
BackgroundChromosomal abnormalities are genetic disorders caused by chromosome errors, leading to developmental delays, birth defects, and miscarriages.
Mega Obukohwo Sr Oyovwi   +3 more
doaj   +1 more source

Sex chromosome evolution: The classical paradigm and so much beyond [PDF]

open access: yesarXiv
Sex chromosomes have independently evolved in species with separate sexes in most lineages across the tree of life. However, the well-accepted canonical model of sex chromosome evolution is not universally supported. There is no single trajectory for sex chromosome formation and evolution across the tree of life, suggesting the underlying mechanisms ...
arxiv  

Chromosome [PDF]

open access: yes, 2011
Martin Hahn, Rohan Palmer
openaire   +2 more sources

Chromosomal Abnormalities Detected by Chromosomal Microarray Analysis and Karyotype in Fetuses with Ultrasound Abnormalities

open access: yesInternational Journal of General Medicine
Liubing Lan,1,2 Dandan Luo,1,2 Jianwen Lian,1 Lingna She,1,3 Bosen Zhang,1,3 Hua Zhong,1 Huaxian Wang,1 Heming Wu1 1Department of Prenatal Diagnostic Center, Meizhou People’s Hospital, Meizhou, People’s Republic of China; 2Department of Obstetrics ...
Lan L   +7 more
doaj  

On the Order of Gene Distribution on Chromosomes Across the Animal Kingdom [PDF]

open access: yesarXiv, 2019
Background. The large-scale pattern of distribution of genes on the chromosomes in the known animal genomes is not well characterized. We hypothesized that individual genes will be distributed on chromosomes in a mathematically ordered manner across the animal kingdom. Results.
arxiv  

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