• 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
recommendations presented at the CLFS meeting
recommendations presented at the CLFS meeting

... variant [typically using nonsequencing target variant analysis], or detection of a dynamic mutation disorder/triplet repeat) There is no current Medicare National Limit amount at this time. ...
Chromosome Aberrations
Chromosome Aberrations

... The lesser horseshoe bat (Rhinolophus hipposideros) has 56 chromosomes but the short-tailed fruit bat (Carollia perspicillata) only has 20. Does that mean that the fruit bat is actually an ear of corn or that the horseshoe bat is really a silkworm in disguise? Is one bat “more complex” than the othe ...
The physics behind the larger scale organization of DNA in eukaryotes
The physics behind the larger scale organization of DNA in eukaryotes

... cells within one species. The stretches of DNA connecting two neighboring NCPs are called linker DNA. As a result one obtains a bead-on-a-string structure, sometimes referred to as a 10 nm fiber. This structure is, however, only observed in vitro at subphysiological salt concentrations. If we nevert ...
Complete Characterization of the 3 Mouse Hereditary Hemochromatosis HFE Gene and
Complete Characterization of the 3 Mouse Hereditary Hemochromatosis HFE Gene and

... ABSTRACT: The human HFE gene was identified in 1996 as the gene whose mutations are responsible for hereditary hemochromatosis in most patients. Expression analysis by Northern blot indicated that the gene was approximately 4.1 kb in length. However, the cDNA reported was only 2716 bp. These results ...
no correlation between cyp17-34t/c polymorphism and severe acne
no correlation between cyp17-34t/c polymorphism and severe acne

... Acne vulgaris is the most common skin condition treated by physician. As a multi factors disease of the pilosebaceous apparatus characterized by abnormal desquamation of follicular epithelial cells, increased sebum production, and proliferation of Propionibacterium acnes (which induces inflammation) ...
Clinical Findings in Chromosome Aberrations
Clinical Findings in Chromosome Aberrations

... Pre-FISH and prometaphase studies o First trimester, total: about 50%, predominantly autosomal trisomies o 3 most frequent : triploidy, 45,X, and trisomy 16 Prenatal ultrasonic findings in autosomal chromosome aberrations o Intrauterine growth retardation: Correlates with survival, postnatal growth ...
Spectrum of Mutations in MMAB Identified by
Spectrum of Mutations in MMAB Identified by

... of L-methylmalonyl-CoA to succinyl-CoA. Somatic cells studies have been used to evaluate patient samples for cobalamin related disorders. Due to high basal levels of propionate incorporation, some patients with mild MMA biochemical phenotypes cannot be diagnosed by complementation analysis. A high r ...
Figure 20-6
Figure 20-6

... • During sexual reproduction the X and Y chromosomes behave as homologues © 2012 Pearson Education, Inc. ...
An assessment of factors affecting the likelihood
An assessment of factors affecting the likelihood

... that competent bacteria are exposed to plant transgenes to the same extent as to other plant DNA. Although positive results have been obtained in vitro, the ability of bacteria to take up plant DNA that is naturally released in situ e.g. in soil or in planta, has not been shown. Information on the ...
CHAPTER ONE: INTRODUCTION AND LITERATURE REVIEW  1.1
CHAPTER ONE: INTRODUCTION AND LITERATURE REVIEW 1.1

... on a game farm in the Kimberley district, Northern Cape Province, South Africa, developed a similar lesion on one of its legs. This arid area of South Africa is not the natural habitat of these antelopes as they are a savanna woodland species (Smithers 1983). Electron microscopically, virus particle ...
Taking Action on Fetal Alcohol Spectrum
Taking Action on Fetal Alcohol Spectrum

... Despite advice from the Ministry of Health1 that women who are pregnant or are planning to get pregnant should not drink alcohol, the evidence suggests that about one in two pregnancies in New Zealand are alcohol exposed.2 Around 10% of pregnancies will be exposed to alcohol at high risk levels (O’K ...
Sickle Cell Disease and Hemoglobinopathy Screening in Pregnancy
Sickle Cell Disease and Hemoglobinopathy Screening in Pregnancy

... demonstrated to occur at an increased rate in women who are sickle cell trait carriers (AS) in several studies; however, there are a few studies that have not found an increased rate of pregnancy related complications. A 1983 study by Tuck et. al.10 looked at 334 pregnancies of women with sickle cel ...
What is Cytogenetics?
What is Cytogenetics?

... diagnosis and treatment. ...
Sleeping Beauty - Weber State University
Sleeping Beauty - Weber State University

... There can be two major strategies to obtain an active transposon system for any organism: find one or make one. From all DNA-transposons found so far in vertebrates, TcEs from teleost fish are by far the best characterized (Goodier and Davidson, 1994; Radice et al., 1994; Izsvak et al., 1995; Ivics ...
Repair of Site-Specific DNA Double-Strand Breaks in
Repair of Site-Specific DNA Double-Strand Breaks in

... DSB repair by NHEJ is usually accompanied by loss or gain (or loss and gain) of nucleotides. Therefore, we evaluated the efficiency of DSB repair via NHEJ by testing for short deletions (<30 bp; often linked with classical NHEJ) and longer deletions (indicating alternative end joining; Deriano and Ro ...
Author`s personal copy
Author`s personal copy

... and color detection with NBT/BCIP were performed using a DIG-High Prime DNA Labeling and Detection Starter Kit I (Roche, USA). For PCR analysis, genomic DNA template was obtained by transferring a colony into a mixture of 500 mL of sterile water and 100 mL phenolechloroform, vortexing the sample for ...
Short Tandem Repeat Polymorphism and Cancer Risk: Influence of
Short Tandem Repeat Polymorphism and Cancer Risk: Influence of

... longer CAG repeats are found to be associated with lower risk of prostate cancer. However, not all epidemiologic studies have found evidence in support of this relationship. In a recent article by Giovannucci (2), 12 published studies on this subject were discussed. One third of the studies showed a ...
Sequence Heterogeneities Among 16s
Sequence Heterogeneities Among 16s

... We have analyzed what phylogenetic signal can be derived by small subunit rRNA comparison for bacteria of different but closely related genera (enterobacteria) and for different species or strains within a single genus (Escherichia or Salmonella), and finally how similar are the ribosomal operons wi ...
Role of the p21 Protein in the Fanconi Anemia Pathway
Role of the p21 Protein in the Fanconi Anemia Pathway

... • Recessive genetic disorder – Biallelic mutations in any one of thirteen genes results in FA – Autosomal and X-linked ...
14-31 - McGraw Hill Higher Education
14-31 - McGraw Hill Higher Education

... DNA technology in forensic science • Developed as a way of defining specific differences in DNA sequences between people – differences must be extensive and detailed enough to minimise risk of accidental identity – gene sequences are not used for this – microsatellites and minisatellites: regions o ...
Interruption of nonviable pregnancies of 24–28 weeks
Interruption of nonviable pregnancies of 24–28 weeks

... misoprostol were effective; the highest doses did not appear to confer a clear benefit, either in time to expulsion or in success of the regimen at 24 or 48 h. The more important factor for expulsion time and success rate was the dosing interval. Longer times to expulsion and lower expulsion rates w ...
Left ventricular function and systemic arterial properties in normal
Left ventricular function and systemic arterial properties in normal

... representing two different departments and medical fields, cardiology and obstetrics, as supervisors for this work. Prof. Svend Aakhus has been the principal supervisor for this thesis, and I am most grateful for his guidance into the world of research. Learning from his excellent skills in echocard ...
Chromosomal breakpoint positions suggest a direct role for radiation
Chromosomal breakpoint positions suggest a direct role for radiation

... PCCL3 cells was associated with loss of di€erentiated properties, but was not sucient for transformation (Santoro et al., 1993). However, malignant phenotype was obtained by cotransfection with H-RAS or K-RAS oncogenes. An alternative to the direct pathway is that radiation does not act directly to ...
Article Mitochondrial DNA turnover occurs during preimplantation
Article Mitochondrial DNA turnover occurs during preimplantation

... by a mitochondrial specific DNA polymerase γ (Lestienne, 1987). The exact molecular mechanism controlling the amount of mtDNA per cell is still uncertain (Moraes, 2001; Bogenhagen and Clayton, 2003). Concentrations of mtDNA are very sensitive to environmental stress, and a sub-optimal environment ca ...
SALSA MLPA KIT ME003-A1 Tumor suppressor-3 - MRC
SALSA MLPA KIT ME003-A1 Tumor suppressor-3 - MRC

... MLPA reactions, the MS-MLPA protocol starts with sample DNA denaturation and overnight hybridization. The reaction then is split into two tubes. One tube is processed as a standard MLPA reaction. This reaction provides information on copy number changes. The other tube of the MLPA hybridization reac ...
< 1 ... 10 11 12 13 14 15 16 17 18 ... 494 >

Cell-free fetal DNA

Cell-free fetal DNA (cffDNA) is fetal DNA circulating freely in the maternal blood stream. It can be sampled by venipuncture on the mother. Analysis of cffDNA provides a method of non-invasive prenatal diagnosis.cffDNA originates from the trophoblasts making up the placenta. It is estimated that 2-6% of the DNA in the maternal blood is fetal in origin. The fetal DNA is fragmented and makes its way into the maternal bloodstream via shedding of the placental microparticles into the maternal bloodstream (figure 1). Studies have shown that cffDNA can first be observed as early as 7 weeks gestation, and the amount of cffDNA increases as the pregnancy progresses. cffDNA diminishes quickly after the birth of the baby, so that it is no longer detectable in the maternal blood approximately 2 hours after birth. cffDNA is significantly smaller than the maternal DNA in the bloodstream, with fragments approximately 200bp in size. Many protocols to extract the fetal DNA from the maternal plasma use its size to distinguish it from the maternal DNA.Studies have looked at, and some even optimized, protocols for testing non-compatible RhD factors, sex determination for X-linked genetic disorders and testing for single gene disorders. Current studies are now looking at determining aneuploidies in the developing fetus. These protocols can be done earlier than the current prenatal testing methods, and have no risk of spontaneous abortion, unlike current prenatal testing methods. Non-invasive prenatal diagnosis (NIPD) has been implemented in the UK and parts of the US; it has clear benefits above the standard tests of chorionic villi sample (CVS) and amniocentesis which have procedure-related miscarriage risks of about 1 in 100 pregnancies and 1 in 200 pregnancies, respectively.As a method of prenatal diagnosis, cell-free fetal DNA techniques share the same ethical and practical issues, such as the possibility of prenatal sex discernment and sex selection.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report