• 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
Comprehension Questions
Comprehension Questions

... Comprehension Questions: Dye Terminator Cycle Sequencing 1. Describe the 3 steps of PCR and the approximate temperatures? ...
Cut-and-paste DNA: fixing mutations with `genome editing`
Cut-and-paste DNA: fixing mutations with `genome editing`

... Gene silencing is definitely one of the most important therapeutic approaches to Huntington’s disease. But what if we could actually go one further and remove the mutation that causes HD from the DNA of patients? The idea seemed completely impossible until recently. Cells have mechanisms that repair ...
Honors Genetics: FINAL Exam Review REVIEW ALL OLD QUIZZES
Honors Genetics: FINAL Exam Review REVIEW ALL OLD QUIZZES

... Practice Punnett Squares and recognize sex-linked pedigrees! Describe the genotype and phenotype – Be able to ID the karyotype - of the following -somic conditions: Turner Syndrome Klinefelter Syndrome Down Syndrome Viability issues concerning autosomal vs sex chromosome abnormalities/Why are some o ...
DNA Paternity Test RFLP analysis (Restriction Fragment Length
DNA Paternity Test RFLP analysis (Restriction Fragment Length

... sequences -each enzyme recognizes and cuts DNA at a different base sequence e.g. BamHI XXXXXXXXGGATCCXXXXXXXXXX XXXXXXXXCCTAGGXXXXXXXXXX -due to spontaneous mutations over time, different people have slightly different base sequences in their DNA -if mutation creates or deletes a restriction site in ...
Practice Exam_Module7
Practice Exam_Module7

... 1. The Dietary Reference Intakes (DRIs) for a pre-conceptual woman are higher for iron and folic acid only. 2. Gestational diabetes and preeclampsia may develop during pregnancy. 3. The nutritional needs for energy and protein are greater during lactation as compared to the needs of a pre-conceptual ...
EOC PRACTICE QUESTIONS #2
EOC PRACTICE QUESTIONS #2

... 121. Organisms that have genes from another organism are called ______. BT corn is an example. ...
Ch. 13 Genetic Engineering
Ch. 13 Genetic Engineering

... DNA fingerprinting: a pattern of dark bands on photographic film that is made when an individuals DNA restriction fragments are separated by gel electrophoresis, probed, and exposed to X-ray film. DNA fingerprints can be used to establish paternity, identify genetic disorders, or in forensics (scien ...
Recombinant DNA Technology
Recombinant DNA Technology

... RNA Interference as a Possible Treatment for High Cholesterol • High levels of ApoB, a protein component of blood lipid carriers, are associated with high cholesterol levels • In monkeys, siRNA for ApoB has lowered the mRNA for ApoB in liver cells and also reduced serum cholesterol levels siRNA for ...
Genetic code molecule
Genetic code molecule

... What is an operon? Group of genes that work together What is an operator? Region where repressor attaches to turn off the genes What is a repressor? Molecule that can attach to the operator site to turn off genes; If repressor is not attached-gene is turned on How is the lac operon in E. coli turned ...
Infection cycle: DNA viruses
Infection cycle: DNA viruses

Chapter 10, 11, 12, 13 Review Questions
Chapter 10, 11, 12, 13 Review Questions

... researched this? What specimen did this person use and why? What are some characteristics of this specimen? DNA; your features; from your parents; genes; alleles, sex cells; Mendel; pea plants, that was what he had on hand 2. What is the difference between genotype and phenotype? What does it mean t ...
gene - ASCLS-NJ
gene - ASCLS-NJ

... recessive disorder in asymptomatic individuals. • Presymptomatic Testing: testing for a gene mutation in asymptomatic individuals. • Prenatal Diagnosis: This application involves testing fetal ...
Mutations Foldable
Mutations Foldable

... – Examples from the environment- UV light, chemicals, radioactive substances, X-rays ...
DNA and RNA
DNA and RNA

... mutagen substance such as a chemical that causes mutations mutation permanent change in a cell’s DNA ranging from changes in a single base pair to deletions of large sections of chromosomes Hox genes A form of gene regulation in an eukaryotic embryo where a series of genes controls the organs and ti ...
Screenings Test for Inherited Disease (STID)
Screenings Test for Inherited Disease (STID)

... genetic disease genes with recessive inheritance. The list of these diseases can be seen by clicking on Disease list, and a detailed description of the 104 genetic disease genes can be found by clicking on Disease description. STID was developed and is performed by the Counsyl laboratory in the USA ...
Gene and Antisense Therapy
Gene and Antisense Therapy

The PCR and -
The PCR and -

... distilled water for each student or group of students. This is more than they need, but these reagents are cheap. Primer 1 should go in a green 0.5 mL microcentrifuge tube, Primer 2 into a violet tube, and the water into an orange tube. The ‘stock’ solutions are provided in screw-capped tubes with l ...
Gendia-Brochure-STID
Gendia-Brochure-STID

... genetic disease genes with recessive inheritance. The list of these diseases can be seen by clicking on Disease list, and a detailed description of the 104 genetic disease genes can be found by clicking on Disease description. STID was developed and is performed by the Counsyl laboratory in the USA ...
doc Practice Midterm 2006
doc Practice Midterm 2006

... These questions are intended to determine how well you know, and can apply, the concepts covered in class. As for the questions above, it is important that your answers are concise and unambiguous, and that they directly address the questions posed. 1. Which of the common Watson-Crick base pairs is ...
Genetics and Biotechnology Test Review
Genetics and Biotechnology Test Review

... 3. What is genetics? 4. What is heredity? 5. Who was the father of genetics? 6. Be able to analyze a pedigree. 7. Does a parent have to show a trait in order for their offspring to show it? 8. What is codominance? 9. What is incomplete dominance? 10. What is a polygenic trait? 11. If a trait appears ...
DNA-protein interaction
DNA-protein interaction

... Dnase-seq Chromosome loci that be actively transcribed are more sensitive to DNaseI digestion. Molecular techniques are used to label and sequence the ends of the digestion sites ...
Name
Name

... Mendel experimented with pea plants and used cross-pollination techniques to study the inheritance of various factors. He took meticulous notes/ observations and discovered the basic laws of genetics without knowing anything about DNA or the structure of genes. b. What is the difference between a do ...
Genetics
Genetics

... 2. Examination of amniotic fluid for products secreted by the fetus 3. Ultrasound of the fetus to detect malformations (NTD, hydrocephalus, …) ...
Unit 4 Review KEY File
Unit 4 Review KEY File

... tRNA UAC CCU AAG ...
File
File

... 8d) Genetic Modifications Poisonous Cabbage The gene that codes for poison in scorpion tails has been inserted into cabbage. These genetically modified cabbages produce scorpion poison that kills caterpillars when they bite leaves — but the toxin is modified so it isn’t harmful to humans. Thus prev ...
< 1 ... 388 389 390 391 392 393 394 395 396 ... 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