• 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
Cloning
Cloning

...  The ‘tag’ of the fusion protein can greatly aid biochemical purification. If the tag binds a particular substance, a column prepared containing that bound substance can be used to purify the tagged protein from virtually all other proteins. (His)6 ATG ...
Stem Cells, Cancer, and Human Health
Stem Cells, Cancer, and Human Health

... • RNA interference (RNAi) (the book mentioned it!!!) tricking cells into shutting genes down Make a piece of a gene that looks like double stranded (viral) RNA. Cell destroys the “viral” RNA, and any similar RNA all the mRNA of gene you want to shut down ...
Mdr and xdr tuberculosis
Mdr and xdr tuberculosis

... displacing primer B3 also called backward outer Primer major role during strand displacement – Strand displacing primer FIP (Forward Inner Primer) function in loop formation BIP (Backward Inner Primer) function in loop formation ...
RNA
RNA

... abiotically and replicated themselves autocatalytically ...
Chapter 20
Chapter 20

... Genes are cloned in plasmids using a cloning vector which is the original plasmid that carries the foreign DNA into the cell.  Bacterial plasmids are commonly used because they are easy to manipulate and most of the experimentation with ...
COMPARISON OF THREE DNA ISOLATION AND
COMPARISON OF THREE DNA ISOLATION AND

... DNA which is then used as a template is the first step that can have a decisive influence on the test result (Niemi et al., 2001).The problem of these molecular biological approaches is extraction process of nucleic acids from Gram-positive bacteria. To extract nucleic acids from bacterial, bacteria ...
Name Period _____ Date ______ SPRING MULTIPLE CHOICE
Name Period _____ Date ______ SPRING MULTIPLE CHOICE

... 1. The indigenous people of Australia want to do an experiment to decrease the population size of non-native (invasive) cane toad species. There is a spray that claims to prevent maturity of specific type (dominant) of non-native toad eggs (therefore decreasing population size of the cane toad). a. ...
PPT File
PPT File

... – come from various types of bacteria – allow scientists to more easily study and manipulate genes – cut DNA at a specific nucleotide sequence called a restriction site ...
DNA AND BIOTECHNOLOGY
DNA AND BIOTECHNOLOGY

... IDENTICLE DNA WILL FRAGMENT IN THE SAME LOCATION WHICH WILL PRODUCE THE SAME FRAGMENT PATTERNS ON A GEL  DNA FROM DIFFERENT PEOPLE WILL FRAGMENT AT DIFFERENT PLACES AND THE FRAGMENT PATTERNS WILL BE DIFFERENT ...
ppt document, 1.2 MB
ppt document, 1.2 MB

UNIT 3 * Macromolecules and enzymes
UNIT 3 * Macromolecules and enzymes

... [UNIT 3 –ENZYMES ...
From DNA to RNA
From DNA to RNA

... How an Organism’s Genotype Determines Its Phenotype • An organism’s genotype is its genetic makeup, the sequence of nucleotide bases in DNA. • The phenotype is the organism’s physical traits, which arise from the actions of a wide variety of proteins. ...
Molecular Genetics
Molecular Genetics

... A DNA – histone protein thread, usually associated with RNA, occurring in the nucleus of a cell Chromosomes contain hundreds of genes encoded within their DNA. ...
Drosophila Melanogaster
Drosophila Melanogaster

... (1) Purify genomic DNA (2) Digest a restricton enzyme, e.g. EcoRI (3) Ligate the digested DNA ...
dna replication - MacWilliams Biology
dna replication - MacWilliams Biology

... 1. The tips of chromosomes are known as telomeres. 2. Particularly difficult to copy. 3. Over time, DNA may actually be lost from telomeres each time a chromosome is replicated. 4. Enzyme called telomerase compensates for this problem by adding short, repeated DNA sequences to telomeres  lengthens ...
Maximizing Mycobacterium tuberculosis DNA yield for molecular
Maximizing Mycobacterium tuberculosis DNA yield for molecular

... for drug-susceptibility testing and sequencing for epidemiological research. These technologies promise more rapid diagnosis and faster drug-susceptibility profiling. While molecular technologies are being adopted more widely, they have not yet been able to match the sensitivity of culture testing i ...
BIOL 221-GENETICS
BIOL 221-GENETICS

... A. Tools used in genetic engineering 1. restriction endonucleases 2. vectors and hosts B. Obtaining products of cloned genes 1. gene isolation 2. expression of cloned genes C. Research use of cloned genes 1. cloned genes as probes 2. DNA sequencing D. Practical applications of biotechnology 1. pharm ...
Gene Mutations
Gene Mutations

... In DNA form can incorporate into the host DNA. In RNA form can be packaged into new virus particles 1. The linear RNA enters the host cell and is translated to produce reverse transcriptase. The reverse transcriptase then uses the mRNA as a template to produce singlestranded DNA. 2. The host cell’s ...
DNA Ladder - Swift Analytical
DNA Ladder - Swift Analytical

... B DNA Ladder, which can be combined in one broad range ladder with a highlighted band (1000 bp). A DNA loading buffer (6x GREEN) is provided with each DNA ladder. The loading buffer contains Ficoll® 400, which facilitates rapid sinking to the bottom of the well in the agarose or polyacrylamide gel. ...
Effects of mutations
Effects of mutations

... chemicals for mutagenicity and carcinogenicity without using animal studies. ...
Frequently Asked Questions.
Frequently Asked Questions.

... DNA can be regarded as a recipe for the substances that our body creates. At InsightYou, we are predominantly interested in the DNA that contributes to substances that influence our brain cells. Variations in DNA mean, for instance, that a certain type of brain cell can be more (or less) active than ...
RevShtFinalBio160
RevShtFinalBio160

... Phases in meiosis where gene scrambling occurs How Huntington’s Chorea and tongue rolling is inherited Types and descriptions of mutations: silent, frameshift, nonsense (early stop), missense mutations Differences in function of mRNA, tRNA, and rRNA Definition of polymerase chain reaction (PCR), gel ...
Recombinant DNA and Gene Cloning
Recombinant DNA and Gene Cloning

... The ends of the cut have an overhanging piece of single-stranded DNA. These are called "sticky ends" because they are able to base pair with any DNA molecule containing the complementary sticky end. In this case, both DNA preparations have complementary sticky ends and thus can pair with each other ...
Microbiology Test Review
Microbiology Test Review

... (Test Wednesday March 30th or Thursday March 31st) 1. What are the two basic components of a virus? 2. Describe the structure of bacteria. ( Be sure to discuss: cell wall, flagellum, pili, DNA) ...
Gel Electrophoresis of DNA
Gel Electrophoresis of DNA

... • A gel is a colloid, a suspension of tiny particles in a medium, occurring in a solid form, like gelatin • Gel electrophoresis refers to the separation of charged particles located in a gel when an electric current is applied • Charged particles can include DNA, amino acids, peptides, etc ...
< 1 ... 668 669 670 671 672 673 674 675 676 ... 1026 >

Deoxyribozyme



Deoxyribozymes, also called DNA enzymes, DNAzymes, or catalytic DNA, are DNA oligonucleotides that are capable of catalyzing specific chemical reactions, similar to the action of other biological enzymes, such as proteins or ribozymes (enzymes composed of RNA).However, in contrast to the abundance of protein enzymes in biological systems and the discovery of biological ribozymes in the 1980s,there are no known naturally occurring deoxyribozymes.Deoxyribozymes should not be confused with DNA aptamers which are oligonucleotides that selectively bind a target ligand, but do not catalyze a subsequent chemical reaction.With the exception of ribozymes, nucleic acid molecules within cells primarily serve as storage of genetic information due to its ability to form complementary base pairs, which allows for high-fidelity copying and transfer of genetic information. In contrast, nucleic acid molecules are more limited in their catalytic ability, in comparison to protein enzymes, to just three types of interactions: hydrogen bonding, pi stacking, and metal-ion coordination. This is due to the limited number of functional groups of the nucleic acid monomers: while proteins are built from up to twenty different amino acids with various functional groups, nucleic acids are built from just four chemically similar nucleobases. In addition, DNA lacks the 2'-hydroxyl group found in RNA which limits the catalytic competency of deoxyribozymes even in comparison to ribozymes.In addition to the inherent inferiority of DNA catalytic activity, the apparent lack of naturally occurring deoxyribozymes may also be due to the primarily double-stranded conformation of DNA in biological systems which would limit its physical flexibility and ability to form tertiary structures, and so would drastically limit the ability of double-stranded DNA to act as a catalyst; though there are a few known instances of biological single-stranded DNA such as multicopy single-stranded DNA (msDNA), certain viral genomes, and the replication fork formed during DNA replication. Further structural differences between DNA and RNA may also play a role in the lack of biological deoxyribozymes, such as the additional methyl group of the DNA base thymidine compared to the RNA base uracil or the tendency of DNA to adopt the B-form helix while RNA tends to adopt the A-form helix. However, it has also been shown that DNA can form structures that RNA cannot, which suggests that, though there are differences in structures that each can form, neither is inherently more or less catalytic due to their possible structural motifs.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report