• 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
A Cough with an Adrenal Surprise
A Cough with an Adrenal Surprise

Genetic Testing
Genetic Testing

... genetic disorders for which there is no treatment, so they can heighten anxieties if you test positive for one of these disorders. They may also test for diseases that you may never actually develop in the future if you do not have other risk factors. For example, testing positive for the BRAC1 gene ...
question 2 - wced curriculum development
question 2 - wced curriculum development

... The peppered-moth, Biston betularia, has two phenotypes for body colour, dark (blackish) and pale (whitish). The trunks of the trees on which the moths rest are black in polluted environments compared to the white trunks of trees in unpolluted environments. In both unpolluted and polluted environmen ...
You Light Up My Life
You Light Up My Life

... • XYY and XXYY- males often found in _________. ...
Challenge Questions
Challenge Questions

... learning how to apply knowledge to different situations is to apply the same question to a different context.  Here is the same  question but this time with the context of PGD. Plan an appropriate answer from the information in the seminar paper.  The  basic technologies you could use are PCR, Restr ...
DNA-dependent DNA polymerase (DDDP)
DNA-dependent DNA polymerase (DDDP)

... Xeroderma pigmentosis (XP) • XP is an autosomal recessive genetic disease. Patients will be suffered with hyper-sensitivity to UV which results in multiple skin cancers. • The cause is due to the low enzymatic activity for the nucleotide excisionrepairing process, particular thymine dimer. ...
Life Sciences P1 Nov 2011 Eng
Life Sciences P1 Nov 2011 Eng

... The peppered-moth, Biston betularia, has two phenotypes for body colour, dark (blackish) and pale (whitish). The trunks of the trees on which the moths rest are black in polluted environments compared to the white trunks of trees in unpolluted environments. In both unpolluted and polluted environmen ...
Plasmid Project due
Plasmid Project due

Section 8.4: DNA Transcription
Section 8.4: DNA Transcription

... sugar), and a nitrogen containing base. – “RNA can be thought of as a temporary copy of DNA that is used and then destroyed. ...
Autosomal Dominance and Recessive Genetic Diseases
Autosomal Dominance and Recessive Genetic Diseases

... • Sex chromosome defects: • Turner syndrome (XO syndrome, monosomy X, missing Y): • Klinefelter syndrome (XXY syndrome, also rarely XXXY): • Jacobs syndrome (XYY syndrome): • Triple-X (XXX, also XXXX or XXXXX): ...
Combinatorial  protein  design  by recombination in  vitro
Combinatorial protein design by recombination in vitro

... comes about when fragments derived from different parental genes prime one another. Point mutations are also introduced during the shuffling process. Crameri et al. [13] used DNA shuffling to evolve green fluorescent protein (GFP) variants with increased fluorescence. After three rounds of DNA shuff ...
C - MCC Year 12 Biology
C - MCC Year 12 Biology

... Where the DNA strands are separated, a short length of RNA binds to each DNA strand under the control of the enzyme, DNA primase. This RNA acts as a primer (see figure 11.26a page 405). ...
THT - TESD home
THT - TESD home

... a copy of every chromosome. Sometimes an error is made during this separation and homologous chromosomes fail to separate. This results in one gamete that has two copies of the chromosome, and another gamete that does not have the chromosome at all. This type of error is known as _______ and usually ...
Transposons - iPlant Pods
Transposons - iPlant Pods

... Over 1000 copies of mPing in 4 related strains…. Naito et al PNAS (2006)) ...
Biotechnology Australia
Biotechnology Australia

... Most vaccines are: low doses of dead disease - causing microorganisms; inactivated toxins from disease - causing bacteria; or weakened living diseasecausing organisms that are unable to cause the severe form of the disease. A vaccine is recognised by the body as a foreign substance. The cells of the ...
EDVOTEK® Professional Development Workshop Literature
EDVOTEK® Professional Development Workshop Literature

... mixed with a heat-killed pathogenic strain. Because the non-pathogenic strain had been “transformed” into a pathogenic strain, he named this transfer of virulence “transformation”. In 1944, Oswald Figure 1: Bacterial Transformation Avery and his colleagues purified DNA, RNA and protein from a virule ...
Answer - Sites@UCI
Answer - Sites@UCI

Ledbetter Presentation 8/15/05
Ledbetter Presentation 8/15/05

... the sensitivity and accuracy of CGH-arrays since we detected 100% of all imbalances (n=17) identified by FISH; ...
cached copy
cached copy

... DNA molecule with connectivity greater than two. The cube self-assembles from pieces of DNA designed to adhere to one another, but the ends of each piece do not join up. Ligases can connect these free ends, resulting in six closed loops, one for each face of the cube. Because of the helical nature o ...
NOTES: 13.3
NOTES: 13.3

... (change in number) ● NONDISJUNCTION: the failure of the chromosomes to separate properly during ...
Notes
Notes

... (change in number) ● NONDISJUNCTION: the failure of the chromosomes to separate properly during ...
ITS PCR (for fungi)
ITS PCR (for fungi)

... (as with mold or yeasts; often indicated by the presence of double bands in a PCR run with ITS ITS 1F ITS 4B 1F/4), a good next step is to run the same sample with 1F/4B, as most of the orneriest contaminants are ascomycetes, and will not be amplified with ITS 4B (B is for basidiomycete). If, for so ...
Document
Document

... mean for Turner Syndrome? We all possess two alleles for each gene product – one from our mother and one from our father. In most genes the end result is the combination of these two alleles (eg handedness). In some genes, especially those related to growth one allele is permanently turned off. This ...
Final Exam answer key
Final Exam answer key

... a. (4 pts) Which enzymes would you use to cut the fragment and the vector to be sure the gene was cloned into the vector so that the protein could be expressed from the promoter on the vector. Explain your choice. BamH1 and HindIII will cut the insert and the vector in the correct places. Because th ...
Gene Transfer
Gene Transfer

... “looping out” to reconstitute a plasmid carrying the antibiotic resistance gene. As maize is usually transformed by biolistics (DNA coated particle bombardment), the entire linearized parental plasmid may be integrated into the plant DNA and could therefore be excised and ligated to form a replicati ...
< 1 ... 147 148 149 150 151 152 153 154 155 ... 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