نتایج جستجو برای: chromosomes counting
تعداد نتایج: 107370 فیلتر نتایج به سال:
Using a human X chromosome-specific DNA library, we have found arbitrary single-copy DNA sequences that reveal useful restriction fragment length polymorphisms. The inheritance of these and other available polymorphic DNA markers has been studied in a series of unrelated three-generation families with large sibships. These families reveal parental phase and allow determination of recombination ...
Embryonic stem cell (ESC) pluripotency is controlled by defined transcription factors. During cellular differentiation, ESCs undergo a global epigenetic reprogramming. Female ESCs exemplify this process as one of the two X-chromosomes is globally silenced during X chromosome inactivation (XCI) to balance the X-linked gene disparity with XY males. The pluripotent factor OCT4 regulates XCI by tri...
This study provides genetic evidences at the chromosome, DNA content, DNA fragment and sequence, and morphological levels to support the successful establishment of the polyploid hybrids of red crucian carp x blunt snout bream, which belonged to a different subfamily of fish (Cyprininae subfamily and Cultrinae subfamily) in the catalog. We successfully obtained the sterile triploid hybrids and ...
The rising global demand for palm oil and its associated products has led to increased numbers of palm oil refineries with its attendant effluent discharge. Many researches have confirmed the ecological disruptive potentiality of Palm Oil Mill Effluent (POME), still further attention has to be directed at POME’s potential genotoxicity. The present study has made physico-chemical and genotoxicit...
background and aim: ring chromosomes are rare cytogenetic abnormalities that occur in less than 10% of hematopoietic malignancies. they are rare in blood disorder. the present review has focused on the ring chromosome associated with oncology malignancies. materials and methods: by reviewing the web-based search for all english scientific peer review articles published, was initiated using medl...
the diploid number among gekkonid lizards ranges from 2n=16 to 2n=46. the majority of geckos' chromosomes are small which makes the study of their chromosomes very difficult. for this reason, karyotype of cyrtopodion caspium and some similar gecko are still not known. the close relatives of c. caspium have variation in the chromosomal number in their populations. so to find out possible variabi...
The 45S and 5S rDNA loci were physically mapped by double-probe FISH on mitotic metaphase chromosomes in the six strains of F. esculentum tataricum. Results showed that tataricum very small similar. diploid karyotype formulas these two species 2n=2x=16=12m+4m (SAT) 2n=2x=16=12m+4sm (SAT), respectively. Four pairs IS, IIS, IIIL, VL, as well IL IVS esculentum, five VIIS, three IL, IVS, VIS There ...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید