• Study Resource
  • Explore Categories
    • Arts & Humanities
    • Business
    • Engineering & Technology
    • Foreign Language
    • History
    • Math
    • Science
    • Social Science

    Top subcategories

    • Advanced Math
    • Algebra
    • Basic Math
    • Calculus
    • Geometry
    • Linear Algebra
    • Pre-Algebra
    • Pre-Calculus
    • Statistics And Probability
    • Trigonometry
    • other →

    Top subcategories

    • Astronomy
    • Astrophysics
    • Biology
    • Chemistry
    • Earth Science
    • Environmental Science
    • Health Science
    • Physics
    • other →

    Top subcategories

    • Anthropology
    • Law
    • Political Science
    • Psychology
    • Sociology
    • other →

    Top subcategories

    • Accounting
    • Economics
    • Finance
    • Management
    • other →

    Top subcategories

    • Aerospace Engineering
    • Bioengineering
    • Chemical Engineering
    • Civil Engineering
    • Computer Science
    • Electrical Engineering
    • Industrial Engineering
    • Mechanical Engineering
    • Web Design
    • other →

    Top subcategories

    • Architecture
    • Communications
    • English
    • Gender Studies
    • Music
    • Performing Arts
    • Philosophy
    • Religious Studies
    • Writing
    • other →

    Top subcategories

    • Ancient History
    • European History
    • US History
    • World History
    • other →

    Top subcategories

    • Croatian
    • Czech
    • Finnish
    • Greek
    • Hindi
    • Japanese
    • Korean
    • Persian
    • Swedish
    • Turkish
    • other →
 
Profile Documents Logout
Upload
Meiosis
Meiosis

... shape and that contain genes for the same traits (homologues) • Just like in mitosis, meiosis occurs after interphase, when the cell grows, DNA is replicated, and chromosomes are duplicated. ...
Identical mutations in RAG1 or RAG2 genes leading
Identical mutations in RAG1 or RAG2 genes leading

... for the repair of this DNA damage.7,8 Faulty V(D)J recombination generally results in the arrest of both B- and T-cell development, leading to severe combined immune deficiency (SCID). This was documented in several settings including the targeted deletion of the RAG1 and RAG2 genes,9,10 the inactiv ...
New Developments in Quantitative Real
New Developments in Quantitative Real

... system makes use of a novel enzymatic cocktail which does not require the DNA to be cycled between different temperatures, like that done for reactions based on Taq DNA polymerase amplification or any of its variants. In lieu of a standard denaturation step, the HDA system uses the helicase enzyme t ...
The Differential Killing of Genes by Inversions in Prokaryotic Genomes
The Differential Killing of Genes by Inversions in Prokaryotic Genomes

... seems important to analyze gene translocations regarding the asymmetrical organization of bacterial chromosomes and the leading and lagging roles of DNA strands. There is still no consensus about which strand— leading or lagging—is synthesized with higher fidelity. We have found that the divergence ...
Lab I: Three-Point Mapping in ​Drosophila melanogaster
Lab I: Three-Point Mapping in ​Drosophila melanogaster

... Referring to table 1 and the phenotypes of the P​1​ generation, the presence of fully wild type males in the P​1​ generation disappeared in the F​1​ generation. This occurred because their X chromosome was only inherited from the P​1​ female (which was fully mutant) and their Y chromosome (which is ...
Leukaemia Section 3q27 rearrangements in non Hodgkin lymphoma,
Leukaemia Section 3q27 rearrangements in non Hodgkin lymphoma,

Experiment 2 Plasmid DNA Isolation, Restriction Digestion and Gel
Experiment 2 Plasmid DNA Isolation, Restriction Digestion and Gel

... need to be treated carefully. Because enzymes are proteins and proteins denature as the temperature is increased, RE's are always stored in a freezer until they are used. In fact, all of the ingredients in a Restriction Digest are kept on ice until it's time for the reaction to begin. The actual rea ...
Genetics Notes
Genetics Notes

... reshaped the study of genetics. His first idea was that genes come in  different forms.  This causes organisms of the same species to still  have some differences.  ...
Conservation of Gene Order between Horse and Human X
Conservation of Gene Order between Horse and Human X

... from diverse sources and provides a basis for comparison of the results obtained through different mapping approaches. The only linkage map hitherto available for ECAX comprises 13 polymorphic microsatellites [12]. Apart from AHT28, all other markers are present also on the RH map. Comparatively, th ...
Butterfly gene flow goes berserk
Butterfly gene flow goes berserk

... the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated. ...
US Tomato sequencing project http://sgn.cornell.edu/
US Tomato sequencing project http://sgn.cornell.edu/

... SSR349A T697 SSR605 ...
Name: Date: Title: Problem Solving Techniques. Introduction. The
Name: Date: Title: Problem Solving Techniques. Introduction. The

... The best way to determine whether you understand the concepts of genetics is to solve problems. The following information may be helpful to you. Genetics problems are almost invariably word problems. The first step is to translate the word problem into genetic terminology, carefully defining any sym ...
Feb 20 lecture presentation
Feb 20 lecture presentation

... Relatively small genomes Haploid genomes (not yeast) Grow th on defined media possible, thus allowing isolation of mut ants unable to grow -defines metabolic/catabolic pathway s ...
Evidence from the gnarly New Zealand snails for and against the red
Evidence from the gnarly New Zealand snails for and against the red

... displacement in stickleback fish (see overheads from 21 Nov. 06). 22. What in your view are the most general statements that can be made about speciation? How does speciation work? What kinds of organism- (or clade-) specific characteristics affect the rates of speciation and extinction? 23. What is ...
Pleurochrysome: A Web Database of
Pleurochrysome: A Web Database of

... the Coccolithales in the Haptophyta. The genus has been used extensively for biological research, together with Emiliania in the Isochrysidales, to understand distinctive features between the two coccolithophorid-including orders. However, molecular biological research on Pleurochrysis such as eluci ...
Impact of genomics on dairy cattle breeding - VT Dairy
Impact of genomics on dairy cattle breeding - VT Dairy

... from high school biology classes that double-stranded DNA is divided into single strands in the formation of sperm and eggs. Some new genetic variation is introduced into the process by “crossovers”, whereby part of a segment from strand breaks and is connected to the same segment location on the ot ...
Mutation-Selection Balance, Dominance and the Maintenance of Sex
Mutation-Selection Balance, Dominance and the Maintenance of Sex

... number of mutations, Kondrashov’s model yields no advantage for sex. Experimental support of this model has been sought: the deleterious mutation rate per genome has been difficult to measure experimentally (Peck and Eyre-Walker 1997), though rates of order unity are plausible. Some evidence against ...
Slide 1 - Faculty Web Pages
Slide 1 - Faculty Web Pages

... 1.) For good form, write down alleles for genes 1, 2, and 3 at top of page. 2.) Determine genotypes for heterozygous parent and cross-progeny, based on the phenotypes. You should already know the genotype of the homozygous parent Do the genotypes give chromosome information? 3.) Write down chromosom ...
Investigating the molecular mechanisms behind flowering in
Investigating the molecular mechanisms behind flowering in

... AP1 homologs have been identified (Nakagawa et al., 2012, Hu et al., 2003, Davenport et al., 2006a, Luo et al., 2009, de los Santos-Villalobos et al., 2012). At present the MiFT genes is the strongest candidate for the genetic precursor of the mango FP, it’s expression increases in response to cooli ...
Diapositiva 1 - Universitat de Lleida
Diapositiva 1 - Universitat de Lleida

... mutation and regions where residue replacement does not change function. • Information about the evolution of organisms. • Orthologs are genes that are evolutionarily related, have a similar function, but now appear in different species. • Homologous genes (genes with share evolutionary origin) have ...
AnalysisOfNGS-derivedPathogenGenomesInClinicalM..
AnalysisOfNGS-derivedPathogenGenomesInClinicalM..

... • This will probably fall to approx £40 (€45) by end of 2011 • These prices are close to or cheaper than that required for MLST ...
Origins of Eukaryotic Sexual Reproduction
Origins of Eukaryotic Sexual Reproduction

... (Butler et al. 2009). Quite remarkably, two sexual species were found to be missing key mating-type locus genes and yet remain sexually fertile. Moreover, the sexual species were missing the same key meiotic genes as C. albicans, as well as two dozen others! That the unusual sexual species Candida l ...
Analysis of a genomic segment of white spot syndrome virus of
Analysis of a genomic segment of white spot syndrome virus of

... From the gel, the total size of the WSSV genome was estimated to be over 200 kb, in agreement with estimates published previously (Yang et al., 1997). BamHI fragments were inserted into bacterial plasmids by shotgun cloning. In situ hybridizations were performed on sections of infected and uninfecte ...
Excel spreadsheet
Excel spreadsheet

... indistiguishable from 5 for this calculation. A transcript was considered increased at 6 hours if the data satisifed the following queries. For a given transcript, each probe pair was scored as increased in sample A relative to sample B if (PM-MM)A-(PM-MM)B > 30 and (PM-MM)A >1.3x(PM-MM)B and decrea ...
UBE3B developmental disorders and increased mortality in cattle
UBE3B developmental disorders and increased mortality in cattle

... three affected and two unaffected animals, using two primer pairs. Primer pair 2 (Additional file 6: Table S4), which flanked exon 23, resulted in the amplification of two fragments from the affected animals and only one fragment from the unaffected animals (Figure 4A). Sequencing of the smaller RT ...
< 1 ... 312 313 314 315 316 317 318 319 320 ... 1288 >

Site-specific recombinase technology



Nearly every human gene has a counterpart in the mouse (regardless of the fact that a minor set of orthologues had to follow species specific selection routes). This made the mouse the major model for elucidating the ways in which our genetic material encodes information. In the late 1980s gene targeting in murine embryonic stem (ES-)cells enabled the transmission of mutations into the mouse germ line and emerged as a novel option to study the genetic basis of regulatory networks as they exist in the genome. Still, classical gene targeting proved to be limited in several ways as gene functions became irreversibly destroyed by the marker gene that had to be introduced for selecting recombinant ES cells. These early steps led to animals in which the mutation was present in all cells of the body from the beginning leading to complex phenotypes and/or early lethality. There was a clear need for methods to restrict these mutations to specific points in development and specific cell types. This dream became reality when groups in the USA were able to introduce bacteriophage and yeast-derived site-specific recombination (SSR-) systems into mammalian cells as well as into the mouse
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report