• 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
Chap 11 – Regulation of Eukaryotic Gene Expression
Chap 11 – Regulation of Eukaryotic Gene Expression

... most genes seems to be off.  A typical plant or animal cell needs to turn on and transcribe only a small percentage of its genes. ...
PowerPoint 演示文稿
PowerPoint 演示文稿

... 3 A stretch of DNA may code for protein. The genetic code describes the relationship between the sequence of DNA and the sequence of the protein. Only one of the two strands of DNA codes for protein. A coding sequence of DNA consists of a series of codons, read from a fixed starting point. A codon ...
Topic 7.1 Replication and DNA Structure
Topic 7.1 Replication and DNA Structure

... • When X-rays pass through a substance, they diffract. • Crystals have a regularly repeating pattern, causing X-rays to diffract in a regular pattern. • These patterns allow for measurements & calculations to be made about the structure of ...
Slide 1 - Montville.net
Slide 1 - Montville.net

... The objective of the Paper Plasmid lab is to have you create a paper recombinant plasmid, a plasmid with a new gene inserted. The plasmid will contain DNA from two different organisms. You will use colored paper, scissors and tape to do this. If you are successful, you will have a two colored paper ...
Chapter07_Outline
Chapter07_Outline

... allows other sequences with similar recognition regions to be incorporated into the integron by recombination. • The elements that integrons acquire are known as cassettes • Integrons may acquire multiple-antibiotic-resistance cassettes, which results in the plasmid resistant to a large number of co ...
Genetics 7 - Mr. Davros` Wiki
Genetics 7 - Mr. Davros` Wiki

... How are genes turned on & off in eukaryotes? How do cells with the same genes differentiate to perform completely ...
Protein Synthesis Quick Questions
Protein Synthesis Quick Questions

... of the cell – the instructions tell the cell how to assemble the amino acids for making proteins ...
Application/registration document for work with biohazards and
Application/registration document for work with biohazards and

... 11. Are you knowledgeable in the Biosafety Level procedures, equipment and facilities required for this project as specified in the most current NIH Guidelines for research involving recombinant DNA molecules?  Yes  No Complete Section C if your work also involves the use of a biohazardous agent. ...
Recombinant DNA and Biotechnology
Recombinant DNA and Biotechnology

... antibiotic resistance gene (e.g., ampicilin resistance) on a plasmid mutagenesis - Site-directed • For viral vectors, use of “infected” phenotype. • Use of “selectable markers” to detect either insertion into the vector or incorporation into the host. Some of these are a type of reporter gene—a gene ...
PROTEIN SYNTHESIS
PROTEIN SYNTHESIS

... code is redundant - more than one triplet can code for the same amino acid ...
C H E M I S T R Y
C H E M I S T R Y

...  Bacteria, such as E.coli, can take up and express foreign DNA, usually in the form of a plasmid. ...
Making Genetically-Identical Cells The Somatic Cell Cycle
Making Genetically-Identical Cells The Somatic Cell Cycle

... Oogenesis begins during embryonic development and stops after Meiosis I. A girl is born with about 250,000 primary oocytes. After puberty, one oocyte per month typically erupts from the ovary. If this oocyte is fertilized, then Meiosis II will occur. ...
Review Questions yeast lecture 18
Review Questions yeast lecture 18

... markers and telomere fragments. These “Vectors” can be used to clone an maintain large stretches of DNA 7. Explain the one-step gene replacement technique in yeast (3) ...
BIOL 5870 - East Carolina University
BIOL 5870 - East Carolina University

... - from the examination of basic mechanisms that regulate gene expression in bacterial and eukaryotic systems, to a description of how regulation of gene expression lies at the heart of the process of development. Recent findings from sequencing whole genomes of several animals have revealed that the ...
Teacher - Challenger Learning Center
Teacher - Challenger Learning Center

... grow in order to keep the body healthy by fighting disease and infection.  Bone marrow cells, which form blood cells.  Skin cells that line the digestive tract and lungs.  Skin cells that form the outer layer of skin.  Kidney cells that serve to remove wastes from the body's fluids. Auntie’s Rec ...
Heredity
Heredity

... mucus production. Both genes are defected (recessive). Scientist insert working copies of gene into harmless viruses. The engineered viruses can be sprayed into the lungs of the patients. • Gene therapy works in hemophilia by using DNA as the drug and viruses as the deliverer. A virus containing the ...
Exploring DNA Structures
Exploring DNA Structures

... Background Information: DNA is the basic material that contains the information that is responsible for the way all living organisms physically look and instruction on how to carry out the activities of the cell. We are going to explore the different parts of DNA. READ THIS BEFORE MOVING ON: Before ...
AIMS Review Packet
AIMS Review Packet

... 1) What is the difference between a hypothesis and a prediction? Hypothesis - is an “idea”, yes, an educated guess, BUT, that can be tested Prediction – your guess as to the exact results of the experiment 2) Why do scientists use a control group in experimental design? Something to compare their da ...
Bio 101 Homework #3 Prof. Fournier
Bio 101 Homework #3 Prof. Fournier

... the same number of chromosomes and the same types of genes the same number of chromosomes, but different types of genes half the number of chromosomes and the same types of genes half the number of chromosomes, but different types of genes ...
PSY 2012 General Psychology Chapter 2: Biopsychology
PSY 2012 General Psychology Chapter 2: Biopsychology

... biological sex – The biological mother contributes the X – The biological father contributes either another X or a Y chromosome. • XX= female (more female fetuses survive than males) • XY=male ...
NAME: NWAIWU ROSEMARY DEPT: BIOCHEMISTRY COURSE
NAME: NWAIWU ROSEMARY DEPT: BIOCHEMISTRY COURSE

... Disadvantages of Mutation DISEASE- As much as mutations have helped humans, mutations are also the cause of certain diseases. For instance, a particular mutation relatively common on the Indian subcontinent predisposes people to heart disease, many other diseases, such as cancer, diabetes and asthma ...
C2005/F2401 `07 -- Lecture 16 -- Last Edited
C2005/F2401 `07 -- Lecture 16 -- Last Edited

... pictures see Becker fig. 20-20 (18-20) or Sadava 13.11 (13.8). 6 How do plasmids pick up genes, such as those that code for drug resistance? Probably by crossing over with the chromosome. A single cut and rejoin event between two circles (such as the bacterial chromosome and a plasmid) generates one ...
Biology Mitosis / Meiosis 2012 – 2013 #3
Biology Mitosis / Meiosis 2012 – 2013 #3

... Biology Mitosis / Meiosis ...
Klinefelters Turners Edwards syndrome Downs
Klinefelters Turners Edwards syndrome Downs

... a genetic defect in which affected women have only one X chromosome, causing developmental abnormalities and infertility. ...
BIOL 222 - philipdarrenjones.com
BIOL 222 - philipdarrenjones.com

... A) the coordinated control of gene expression in bacteria B) bacterial resistance to antibiotics C) how genes move between homologous regions of DNA D) the mechanism of viral attachment to a host cell E) horizontal transmission of plant viruses 2) Which enzyme catalyzes the elongation of a DNA stran ...
< 1 ... 269 270 271 272 273 274 275 276 277 ... 481 >

Extrachromosomal DNA



Extrachromosomal DNA is any DNA that is found outside of the nucleus of a cell. It is also referred to as extranuclear DNA or cytoplasmic DNA. Most DNA in an individual genome is found in chromosomes but DNA found outside of the nucleus also serves important biological functions.In prokaryotes, nonviral extrachromosomal DNA is primarily found in plasmids whereas in eukaryotes extrachromosomal DNA is primarily found in organelles. Mitochondrial DNA is a main source of this extrachromosomal DNA in eukaryotes. Extrachromosomal DNA is often used in research of replication because it is easy to identify and isolate.Extrachromosomal DNA was found to be structurally different from nuclear DNA. Cytoplasmic DNA is less methylated than DNA found within the nucleus. It was also confirmed that the sequences of cytoplasmic DNA was different from nuclear DNA in the same organism, showing that cytoplasmic DNAs are not simply fragments of nuclear DNA.In addition to DNA found outside of the nucleus in cells, infection of viral genomes also provides an example of extrachromosomal DNA.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report