منابع مشابه
Sly Represses Gene Expression in Sex Chromosomes
The nuclei of eukaryotic cells can be thought of as a library containing the molecular ‘‘recipes,’’ or genes, for constructing the proteins and ribonucleic acid molecules used by a cell. Within the library, genes are grouped together into ‘‘books,’’ known as chromosomes, which consist of linear strands of DNA wrapped around specialized DNA-interacting proteins. Human body cells have 46 chromoso...
متن کاملSex-Specific Embryonic Gene Expression in Species with Newly Evolved Sex Chromosomes
Sex chromosome dosage differences between females and males are a significant form of natural genetic variation in many species. Like many species with chromosomal sex determination, Drosophila females have two X chromosomes, while males have one X and one Y. Fusions of sex chromosomes with autosomes have occurred along the lineage leading to D. pseudoobscura and D. miranda. The resulting neo-s...
متن کاملSex chromosomes, sex determination, and sex-linked sequences in Microtidae.
The Arvicolidae is a widely distributed rodent group with several interesting characteristics in their sex chromosomes. Here, we summarize the actual knowledge of some of these characteristics. This mammalian group has species with abnormal sex determination systems. In fact, some species present the same karyotype in both males and females, with total absence of a Y chromosome, and hence of SR...
متن کاملHypothyroidism and sex chromosomes.
The observation of Campbell and Price in 1979 that their Unit had diagnosed four subjects with both Klinefelter's syndrome and congenital hypothyroidism raised the suspicion of an association between the two conditions. This, and the published reports of an XX male, five XXY males, and one mosaic XY/XXY with congenital or acquired forms of hypothyroidism, together with the higher incidence in w...
متن کاملLG24 and sex chromosomes
The grass carp (Ctenopharyngodon idella) is one of the most important freshwater fish species in China and the world; grass carp production accounts for about 16% of the world’s total freshwater aquaculture [1]. In 2015, Wang et al. performed whole-genome sequencing and de novo assembly for a female (0.9 Gb) and male grass carp (1.07 Gb) by using the shotgun sequencing strategy [2]. Based on th...
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ژورنال
عنوان ژورنال: BMC Biology
سال: 2011
ISSN: 1741-7007
DOI: 10.1186/1741-7007-9-30