• 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
Ch8MicrobialGenetics
Ch8MicrobialGenetics

... Differentiate between horizontal and vertical gene transfer. Describe the functions of plasmids and transposons. © 2004 by Jones and Bartlett Publishers ...
genotyping single nucleotide polymorphisms located on
genotyping single nucleotide polymorphisms located on

... these primer extension reactions are being analyzed using matrix assisted laser desorption-ionization time of flight mass spectrometry (MALDI-TOF MS) due to its inherent speed and accuracy for typing SNPs. The speed and accuracy of MALDI-TOF MS also allows rapid development of large DNA typing datab ...
Legal Rights and the Maternal
Legal Rights and the Maternal

... decides not to comply with recommendations that her physician considers to be in the best interest of the fetus. What is the best method of resolving this situation? What are the moral obligations of the physician to the pregnant woman and to the fetus? In order to answer the above questions, it is ...
Slide 1
Slide 1

... If there is a known genetic condition a doctor may suggest a couple go through genetic counseling to determine their risk of having a child with an inherited genetic condition. • A pedigree can help us understand the past & predict the future • Thousands of genetic disorders are inherited as simple ...
Facioscapulohumeral Muscular Dystrophy (FSHD)
Facioscapulohumeral Muscular Dystrophy (FSHD)

... of DNA on chromosome 4. This test, which is performed on blood cells, is considered highly accurate for FSHD, even though no specific gene has been identified as being associated with the disorder. In people who have a family history of the disease and are showing signs of it, a DNA test is generall ...
Spr01Exam II Answer Key
Spr01Exam II Answer Key

... the game ended. Health officials quickly zeroed in on the arena’s hot dogs as the culprit. Scientists were easily able to isolate a bacteria from the hot dogs that appears almost identical to the common nonpathogenic strain of E.coli that is normally found in our intestines. When culturing the bacte ...
Life Sciences Exemplar Paper 1
Life Sciences Exemplar Paper 1

... correctly represents the genotypic ratio expected in the F2 generation? A ...
Molecular Genetic Study of PTC Tasting in Basra
Molecular Genetic Study of PTC Tasting in Basra

... the genotypes CC and CG in comparison with the recessive non-tasted individuals. These results are in consistent with international studies, as in Malaysia (Ooi et al, 2010), Turkey (Ergun and Askoy, 2013) and USA (Schembre et al, 2013). C allele also recorded highest values in comparison with G all ...
Single-molecule studies of DNA replication Geertsema, Hylkje
Single-molecule studies of DNA replication Geertsema, Hylkje

... replication proteins are stably bound and re-used for many cycles of Okazakifragment synthesis. Such a mechanism provides an attractive model for coordinated synthesis of both strands. Dilution experiments of T7 DNA replication reactions showed that both leading- and lagging-strand synthesis are res ...
Blood Types and their Origin
Blood Types and their Origin

... of N-acetylgalactosamine by the enzyme type A transferase on the H substance. Type B results from attachment of galactose to H by Type B transferase. Type O is the result of a simple point mutation that greatly reduced or destroyed the ability of Type A transferase to attach N-acetylgalactosamine to ...
Poster Title - UED-HAM
Poster Title - UED-HAM

... 27,30 ±6,32yr). Blood samples were collected at the end of pregnancy and vitamin D deficiency was defined according to two cut points for serum 25OHD concentrations (<20 and <30 ng/ml). ...
Metagenomics: DNA sequencing of environmental samples
Metagenomics: DNA sequencing of environmental samples

... Natural samples contain DNA in a variety of packages, including free DNA, virus particles, and prokaryotic and eukaryotic cells. These can be suspended in water, bound to a solid matrix like soil, or encased in a biofilm or tissue. Extraction methods must be chosen carefully based on the medium and ...
Leukaemia Section t(X;11)(q21;q23) Atlas of Genetics and Cytogenetics in Oncology and Haematology
Leukaemia Section t(X;11)(q21;q23) Atlas of Genetics and Cytogenetics in Oncology and Haematology

... Published in Atlas Database: August 2006 Online updated version: http://AtlasGeneticsOncology.org/Anomalies/t0X11q21q23ID1430.html ...
Chapter 11: Complex Inheritance and Human Heredity • Main idea
Chapter 11: Complex Inheritance and Human Heredity • Main idea

... • Dr. Archibald Garrod, an English physician, became interested in a disorder linked to an enzyme deficiency called alkaptonuria, which results in black urine and runs in families. • A recessive trait is expressed when the individual is homozygous recessive for the trait. • Therefore, those with at ...
Chapter 13 – RNA and Protein Synthesis Study Guide
Chapter 13 – RNA and Protein Synthesis Study Guide

... Point mutation is a form of gene mutation where only a specific amino acid is affected. When nitrogen bases are replaced by a different nitrogen base (substitution), a point mutation occurs. 6. What is a frameshift mutation? What causes it? Frameshift mutations are mutations that change the entire s ...
Screening of RYR1 genotypes in swine population by a rapid and
Screening of RYR1 genotypes in swine population by a rapid and

... Nn) in the herd, with the intention to produce a new generation, led to the automatic increase of the mutant allele n frequency in pig populations. In the recent years, several genetic tests were described to identify mutations and type single-nucleotide polymorphisms (SNPs) including the RYR1. The ...
Polygenic Traits
Polygenic Traits

... – taller than average, slightly lower IQ on average. ...
Define genetics, genome, chromosome, gene, genetic code
Define genetics, genome, chromosome, gene, genetic code

CHAPTER 8
CHAPTER 8

Name
Name

... 33-37. Label where you would find each of the following. If it’s both inside and outside the nucleus, show an arrow coming out of the nucleus. □ DNA □ ribosomes □ mRNA □ tRNA □ amino acids ...
Note 7.1 - Gene to Protein
Note 7.1 - Gene to Protein

... (cytosine). Once again only three letters are used to code for an amino acid. There are sixty four (43) different combinations of three nitrogenous bases that can code for 20 amino acids. Some of the amino acids have more then one codon to represent them. 61 codons code for amino acids, while 3 codo ...
Exchange of genetic material between harmless bacteria could be
Exchange of genetic material between harmless bacteria could be

... vaccines currently available against this bacterium, S. pneumoniae can evade the vaccine by exchanging its DNA in a process known as recombination. This can include the gain of antibiotic-resistant genetic variants and increase the risk of wider spread of antibiotic resistance. In this study, a seem ...
Slide 1
Slide 1

... allozymes of the enzyme esterase 6 in Drosophila melanogaster. There are two alleles of this locus, one of which is dominant to the other and results in increased electrophoretic mobility of affected allozymes. The locus responsible has been mapped to 3-56.7 on the standard genetic map (Est-6 is at ...
GI Physiology
GI Physiology

... Volume of uterus cavity: become enlargement from 10ml pre-pregnancy to 5000ml at term . ...
simultaneous detection of colorectal cancer mutations in stool
simultaneous detection of colorectal cancer mutations in stool

... many other tumours is curable if detected at an early stage. Current detection options include faecal occult blood testing and invasive direct visualisation techniques such as flexible sigmoidoscopy, colonoscopy and barium enema. The availability of a more simple, non-invasive test that detects tumo ...
< 1 ... 162 163 164 165 166 167 168 169 170 ... 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