Number of genes

Xem 1-20 trên 107 kết quả Number of genes
  • Chapter 4 - The chromosome theory of inheritance. The main contents of this chapter include all of the following: Chromosomes - The carriers of genes, mitosis: cell division that preserves chromosome number, meiosis: cell divisions that halve chromosome number, gametogenesis, validation of the chromosome theory.

    ppt60p tangtuy04 12-03-2016 4 2   Download

  • Flow cytometry is a technology that simultaneously measures and analyses multiple physical characteristics of single particles, usually cells, as they flow in a fluid stream through a beam of light. The properties measured include a particle’s relative size (represented by forward angle light scatter), relative granularity or internal complexity (represented by right-angle scatter), and relative fluorescence intensity.

    pdf314p yeutinh98 22-09-2012 31 10   Download

  • Increasing attention has also been given to dissecting and understanding diversity in relation to genes underlying important agronomic traits in a number of crops. Molecular phylogenetics and genetic diversity analysis can help to clarify the taxonomic identity and evolutionary relationships of the wild relatives of crop species. These methods can also help prevent misidentification and carefully plan effective germplasm management strategies.

    pdf414p conquynho32 18-09-2012 33 6   Download

  • The importance of sustainable management of non-market forest goods and services has increased during the last few years. This is also reflected in a number of policy documents within the EU. The new EU Rural Development Regulation speaks about the “non-productive investments", as investments to enhance the public amenity value of forests. The stakeholder consultation process within the EU Forestry Strategy and the report of the strategy’s implementation identify the issue of creating markets for currently non-market forest goods and services as an emerging issue.

    pdf75p dangsuynghi 15-03-2013 26 6   Download

  • Table 62-8 Genetic Approaches for Identifying Disease Genes Method Indications Advantages and Limitations Linkage Studies Classical linkage analysis Analysis of Difficult to collect (parametric monogenic traits large informative pedigrees methods) Suitable for genome scan Difficult to obtain sufficient statistical power for complex traits Control not required population Useful for multifactorial disorders in isolated populations Allele-sharing Suitable for Difficult to collect methods (nonparametric identification methods) susceptibility genes of sufficient nu...

    pdf5p konheokonmummim 03-12-2010 33 4   Download

  • Deferasirox is a promising oral iron-chelating agent. Single daily doses of 20 or 30 mg deferasirox produced reductions in liver iron concentration comparable to desferoxamine in chronically transfused adult and pediatric patients. Deferasirox produces some elevations in liver enzymes and slight but persistent increases in serum creatinine, without apparent clinical consequence. Other toxicities are similar to those of desferoxamine. Its toxicity profile is acceptable, although long-term effects are still being evaluated.

    pdf6p thanhongan 07-12-2010 36 4   Download

  • In fact, existing regulation, both private and governmental, is working to punish the individual responsible in that case. However, a simple legal restriction on the number of embryos transferred would not be desirable. It is preferable that the clinical judgment of highly trained specialty physicians, brought to bear on the particular circumstances of each case and made with evidence-based national guidelines in mind, determine the course of treatment.

    pdf25p le_minh_nha 25-12-2012 19 4   Download

  • The increasing number of countries for which a Social Accounting Matrix (SAM) has been compiled testifies to the usefulness of this integrated data framework. Considerable resources are always involved in the construction of a SAM, for it provides a comprehensive description of an economy with emphasis on distributive aspects. This means that, unlike other data systems, incomes and expenditures of several categories of households and their relation to the production structure, the balance of payments and transactions by other institutions are shown.

    pdf30p bin_pham 06-02-2013 28 4   Download

  • Nucleotide Repeat Expansion Disorders Several diseases are associated with an increase in the number of nucleotide repeats above a certain threshold (Table 62-6). The repeats are sometimes located within the coding region of the genes, as in Huntington disease or the X-linked form of spinal and bulbar muscular atrophy (SBMA, Kennedy syndrome). In other instances, the repeats probably alter gene regulatory sequences. If an expansion is present, the DNA fragment is unstable and tends to expand further during cell division.

    pdf5p konheokonmummim 03-12-2010 31 3   Download

  • For many years obesity in rodents has been known to be caused by a number of distinct mutations distributed through the genome. Most of these singlegene mutations cause both hyperphagia and diminished energy expenditure, suggesting a physiologic link between these two parameters of energy homeostasis. Identification of the ob gene mutation in genetically obese (ob/ob) mice represented a major breakthrough in the field. The ob/ob mouse develops severe obesity, insulin resistance, and hyperphagia, as well as efficient metabolism (e.g.

    pdf6p konheokonmummim 03-12-2010 27 3   Download

  • Tuyển tập các báo cáo nghiên cứu khoa học ngành y học tạp chí Medical Sciences dành cho các bạn sinh viên ngành y tham khảo đề tài: A Novel Variable Number of Tandem Repeat of the Natriuretic Peptide Precursor B gene’s 5’-Flanking Region is Associated with Essential Hypertension among Japanese Females...

    pdf7p thulanh9 07-10-2011 28 3   Download

  • Tuyển tập các báo cáo nghiên cứu về sinh học được đăng trên tạp chí sinh học thế giới đề tài: Likelihood and Bayesian analyses reveal major genes affecting body composition, carcass, meat quality and the number of false teats in a Chinese European pig line

    pdf18p toshiba19 08-11-2011 19 3   Download

  • This book is an outgrowth of the George Fisher Baker Lecture series presented by one of us (C.R.C.) at Cornell University in the fall of 1992. This author is tremendously grateful to all those at Cornell who made this occasion truly memorable, personally, and most pro- ductive, intellectually. Included especially are Jean Fréchet, Barbara Baird, John Clardy, Jerrold Meinwald, Fred McLafferty, Benjamin Widom, David Usher, and Quentin Gibson, among many others.

    pdf613p banhkem0908 24-11-2012 32 3   Download

  • MicroRNAs (miRNAs) regulate gene expression post-transcriptionally by binding to target mRNAs in a sequence-specific manner. A large number of genes appear to be the target of miRNAs, and an essential role for miRNAs in the regulation of various conserved cell signaling cascades, such as mitogen-activated protein kinase, Notch and Hedgehog

    pdf9p cosis54 05-01-2013 17 3   Download

  • Dimerization of the Jun–Fos activator protein-1 (AP-1) transcriptional reg-ulator is mediated by coiled coil regions that facilitate binding of the basic regions to a specific promoter. AP-1 is responsible for the regulation of a number of genes involved in cell proliferation.

    pdf10p mobifone23 07-01-2013 6 3   Download

  • Overall, the rapid development in the market for credit risk transfer played a major role altering banks’ functions. Structurally, securitization allowed banks to turn traditionally illiquid claims (overwhelmingly in the form of bank loans) into marketable securities. The development of securitization has therefore allowed banks to off-load part of their credit exposure to other investors thereby lowering regulatory pressures on capital requirements allowing them to raise new funds.

    pdf42p enterroi 01-02-2013 19 3   Download

  • The number of DNA sequences and transcription factors that regulate transcription is much greater than originally anticipated. Most genes contain at least 15–20 discrete regulatory elements within 300 bp of the transcription start site. This densely packed promoter region often contains binding sites for ubiquitous transcription factors such as CAAT box/enhancer binding protein (C/EBP), cyclic AMP response element–binding (CREB) protein, selective promoter factor 1 (Sp-1), or activator protein 1 (AP-1).

    pdf4p konheokonmummim 03-12-2010 28 2   Download

  • Transcriptional Activation and Repression Every gene is controlled uniquely, whether in its spatial or temporal pattern of expression or in its response to extracellular signals. It is estimated that transcription factors account for ~30% of expressed genes. A growing number of identified genetic diseases involve transcription factors (Table 62-2). The MODY (maturity-onset diabetes of the young) disorders are representative of this group of diseases; mutations in several different islet cell–specific transcription factors cause various forms of MODY (Chap. 338).

    pdf5p konheokonmummim 03-12-2010 23 2   Download

  • Parkinson’s disease is the second most common neurodegenerative disorder. The pathological hallmark of the disease is degeneration of midbrain dopaminergic neurons. Genetic association studies have linked 13 human chromosomal loci to Parkinson’s disease. Identification of gene(s), as part of the etiology of Parkinson’s disease, within the large number of genes residing in these loci can be achieved through several approaches, including screening methods, and considering appropriate criteria.

    pdf5p toshiba23 18-11-2011 14 2   Download

  • The current funding system is a matter of concern because—with fewer characteristics distinguishing the national bank charter from a state bank char- ter—chartering authorities increasingly compete for member banks on the basis of supervisory costs and the ways in which those costs can be con- tained. Furthermore, two recent trends in the banking industry have been fueling the cost com- petition: increased consolidation and increased complexity.

    pdf5p machuavo 19-01-2013 11 2   Download

Đồng bộ tài khoản