• 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
Presentation (PPT/5.03MB) - CLU-IN
Presentation (PPT/5.03MB) - CLU-IN

... other (double helix) – Bases of the two strands face each other – Forms base pairs – A pairs with T, G pairs with C ...
A O R P T Y S
A O R P T Y S

... • Nitrogen BASES= Instructions for Proteins • Nitrogen bases are read in units of 3 called codons • Each codon represents 1 amino acid ...
Bacterial Genetics Notes
Bacterial Genetics Notes

... E) The next codon is read and another amino acid comes in forming a peptide bond with the previous one F) This continues until the ribosomes reaches a stop (nonsense) codon on the mRNA 1) can be UAA, UAG, or UGA G) The new protein is released to the cell for use or release Genetic Engineering A. Too ...
DNA Structure - WordPress.com
DNA Structure - WordPress.com

... A always pairs with T G always pairs with C The bases that pair with each other are called complimentary ...
Chapter 12 DNA
Chapter 12 DNA

... about which was the genetic material because proteins are more complex than DNA. • Finally in 1952 DNA was proven to be the genetic material. ...
Chapter 16
Chapter 16

... 1. Diagram the “Central Dogma” of molecular genetics. How does it allow for DNA to serve as both the heritable molecule and code for protein sequence? 2. Explain the experiment conducted by Meselson and Stahl. How did the results of their experiment demonstrate the semi-conservative model of DNA rep ...
RNA and PROTEIN SYNTHESIS
RNA and PROTEIN SYNTHESIS

... triplets called codons • Codon specifies what amino acid the tRNA brings ...
A new method for strand discrimination in
A new method for strand discrimination in

... utilized as the primer for DNA polymerase I (6). In the following, I describe one example of the mutagenesis using this method. A 1450 bp fragment coding for the actin gene (ACT1) of Schizosaccharomyces pombe (10) was inserted into the vector pTZ19Urrh to construct pSPACTl. Single-stranded DNA of pS ...
What Are Proteins? - Center for the Physics of Living Cells
What Are Proteins? - Center for the Physics of Living Cells

... protein  representation  to  show  it  again  (the  word  “protein”  should  turn   from  black  to  red).    Take  some  time  to  explore  the  overall  structure  like   you  did  at  the  beginning  of  this  lesson.   What  do ...
Central Dogma and Structure of DNA
Central Dogma and Structure of DNA

... • There is something inside of cells that determines their traits. • This substance is merely a component or part of the cell • When transferred to another cells, this substance can transform the traits of another organism ...
Document
Document

... the entire amino acid sequence of the protein, so SHAPE and FUNCTION of protein are altered. Serious. ...
Molecular basis of genetic variation
Molecular basis of genetic variation

... 4 haploid daughter cells (sperm or eggs) have a unique set of chromosomes with DNA from both parents ...
DNA, Replication and Protein Synthesis
DNA, Replication and Protein Synthesis

... mistakes in pairings, and even some insertion of the wrong base pair or a deletion are corrected in the final step. – Polymerase is the enzyme that is involved in this process. ...
Name
Name

... In a single strand of DNA, the phosphate group binds to the ...
DNA Modeling
DNA Modeling

... biology, but biology as a whole, especially in relation to fields such as genetics, evolution, medicine, and biotechnology. Replication. The first part of the central dogma involves a process called replication. This process occurs during the “S” stage of interphase in the cell cycle. Replication oc ...
DNA Lecture - Northwest ISD Moodle
DNA Lecture - Northwest ISD Moodle

... The Genetic Code • Remember that messenger RNA – mRNAis a copy of the DNA. It carries instructions for making a protein. • The instructions (nucleotides) have to be ...
Warm Up - lifewithlloyd
Warm Up - lifewithlloyd

... represent the nucleotide pairs. • Have the two lines move away from each other to model how the DNA molecule separates into two strands. • Have free standing students pair up with matching A, T, C, or G cards to show how the open strands replicate. • This one example of how models can be similar to ...
the discovery of reverse transcriptase
the discovery of reverse transcriptase

... Rous sarcoma virus (RSV). This RNA virus is capable of transforming normal cells into cancerous cells. Temin felt the best explanation for the virus’s behavior was a model whereby the virus remains in a dormant, or proviral, state in the cell. However, since RNA is notoriously unstable, Temin ...
www.ck12.org RNA Practice Worksheet Visit CK12.org for Free
www.ck12.org RNA Practice Worksheet Visit CK12.org for Free

... Select All That Apply Questions ...
The DNA strand that is replicated smoothly and continuously is
The DNA strand that is replicated smoothly and continuously is

... 1. is a site where one DNA strand serves as a template, but the other strand is not replicated. 2. is created by the action of the enzyme RNA polymerase. 3. is only seen in prokaryotic chromosomes. 4. is a Y-shaped structure where both DNA strands are replicated simultaneously. ...
DNA Replication
DNA Replication

... Chromatin ...
Lesson 3 * Gene Expression
Lesson 3 * Gene Expression

... RNA has a different base (Uracil rather than Thymine) and a different sugar (Ribose rather than Deoxyribose). It is more stable as a single stranded molecule. ...
chapter_8_mod_2009
chapter_8_mod_2009

... – Where there is an A on the old strand, polymerase will add a T to the new strand. 3. In eukaryotic cells, replication process starts at the same time in several places along the DNA molecule. As the points of DNA replication meet each other, they combine and a new strand of DNA is formed (Fig. 8.3 ...
DNA and Protein Synthesis Review Questions w/answers
DNA and Protein Synthesis Review Questions w/answers

... 8. What are some situations in which your body would make new cells? For example: repair of cellular damage (heal puncture wound or cut, blood loss, cellular growth, immune response – produce white blood cells, skin cells constantly replaced, etc.) 9. The process named in #7 takes place in the nucl ...
DNA study guide answers
DNA study guide answers

... – DNA serves as a template for mRNA synthesis, mRNA attaches to a ribosome, mRNA moves from the nucleus to the cytoplasm, tRNA bonds to a specific codon, amino acids are bonded together ...
< 1 ... 87 88 89 90 91 92 93 94 95 ... 148 >

Helicase



Helicases are a class of enzymes vital to all living organisms. Their main function is to unpackage an organism's genes. They are motor proteins that move directionally along a nucleic acid phosphodiester backbone, separating two annealed nucleic acid strands (i.e., DNA, RNA, or RNA-DNA hybrid) using energy derived from ATP hydrolysis. There are many helicases resulting from the great variety of processes in which strand separation must be catalyzed. Approximately 1% of eukaryotic genes code for helicases. The human genome codes for 95 non-redundant helicases: 64 RNA helicases and 31 DNA helicases. Many cellular processes, such as DNA replication, transcription, translation, recombination, DNA repair, and ribosome biogenesis involve the separation of nucleic acid strands that necessitates the use of helicases.
  • studyres.com © 2025
  • DMCA
  • Privacy
  • Terms
  • Report