• Study Resource
  • Explore
    • 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
Quarter 1 Section 1.7 Name:
Quarter 1 Section 1.7 Name:

... builders how to construct a house, the DNA "blueprint" tells the cell how to build the organism. Yet, how can a heart be so different from a brain if all the cells contain the same instructions? Although much work remains in genetics, it has become apparent that a cell has the ability to turn off mo ...
DNA
DNA

... • The process of “reading” the three letter “words” , or codons, is known as translation • Translation takes place at the ribosomes in the cytoplasm – The amino acids are free-floating in the cytoplasm and congregate at the ribosome during protein synthesis ...
To use a skit to explain the role of the enzymes in
To use a skit to explain the role of the enzymes in

... DNA Polymerase can only add nucleotides to the 3’ end of a primer. ...
DNA – Worksheet
DNA – Worksheet

... What base will pair with cytosine? What base will pair with adenine? The shape of the DNA structure is twisted, it is better known as ___. 6. What is the process called when DNA copies itself? 7. Name the three types of RNA. 8. What is transcription? 9. What is translation? 10. What kind of informat ...
Unit 4
Unit 4

... Scientists can now make gene copies of the gene they want to study. They can also be good in that they produce new protein product, and also a plasminogen activator and giving powers to cells that do not have a certain power. 2. Describe the natural function of restriction enzymes. Enzymes protect b ...
Unit 6 Learning Targets
Unit 6 Learning Targets

... b. Viruses replicate via a component assembly model allowing one virus to produce many progeny simultaneously via the lytic cycle. c. Virus replication allows for mutations to occur through usual host pathways. d. RNA viruses lack replication error-checking mechanisms, and thus have higher rates of ...
Chapter 12 Notes - Rankin County School District
Chapter 12 Notes - Rankin County School District

... The ribosome joins the two amino acids— methionine and phenylalanine—and breaks the bond between methionine and its tRNA. The tRNA floats away, allowing the ribosome to bind to another tRNA. The ribosome moves along the mRNA, binding new tRNA molecules and amino acids. ...
File
File

... Calculate the percentage change in height for the O. sativa japonica unmodified variety during the submergence period. Show your working. ...
Protein Synthesis PowerPoint - Scotts Valley High School
Protein Synthesis PowerPoint - Scotts Valley High School

... only 20 amino acids Several codons can code for the same amino acid Ex. CCU, CCA, CCG, CCC = Proline ...
DNA_and_RNA
DNA_and_RNA

... •Use Franklin’s images to describe the structure of DNA •(1962) Watson, Crick, and Wilkins win the Nobel Prize, Franklin has already died from cancer (1958) so she does not get recognition ...
Structure of DNA - McCarter Biology
Structure of DNA - McCarter Biology

... _________. The model of DNA that they constructed was made of two chains now referred to as the double __________. Each chain consists of linked sugars called ___________ and phosphates units. The chains are complementary to each other. One of four nitrogencontaining bases connects the chains togeth ...
DNA_to_Proteins.ver6 - RI
DNA_to_Proteins.ver6 - RI

... The focus of this activity is for students to explore the processes of transcription and translation. They determine how DNA’s structure encodes for proteins. The DNA to Proteins unit is supported by the Electrostatics activity. To predict why the base pairs (A-T, C-G) bond, students first need to a ...
BIOLOGY Chapter 11: DNA and the Language of Life Name: Section
BIOLOGY Chapter 11: DNA and the Language of Life Name: Section

... ii. Conclusion was protein __________________________ be transforming factor b. Next, treated mixture with DNA destroying enzymes i. This time colonies __________________________ to transform ii. Avery concluded DNA is genetic material of the cell C. Virus experiments provide more evidence 1) Many _ ...
DNA - mechalskesbiology
DNA - mechalskesbiology

... the code from a DNA molecule into a protein It is very similar to DNA except: it is single stranded, it’s sugar is ribose and instead of thymine as a base, it uses Uracil (so A pairs with U in RNA only!) There are three types of RNA: messenger, ribosomal and transfer (ALL are involved in protein syn ...
Chapter 12 - Fort Bend ISD
Chapter 12 - Fort Bend ISD

... In humans, DNA is copied at about 50 base pairs per second. A cell’s DNA is copied with less than one mistake in a billion nucleotides. This is equal to a person copying 100 large (1000 page) dictionaries word for word with only one error! ...
File
File

... Name ____________________________________________ ...
DNA, RNA and Protein Synthesis
DNA, RNA and Protein Synthesis

... DNA, RNA and Protein Synthesis c. Complementary Bases  In 1949, Erwin Chargaff observed that the percentage of adenine equals the percentage of thymine and the percentage of cytosine and guanine are also equal to each other in the DNA of a variety of organisms. 1. This observation was key to under ...
DNA- Replication - Seabreeze High School
DNA- Replication - Seabreeze High School

... Genetic engineering Recombinant DNA- DNA made from 2 or more organisms  Vector- What gets the gene into the cell ...
DNA
DNA

... Purines are nitrogenous bases made of two rings of carbon and nitrogen atoms. Pyrimidines are nitrogenous bases made of a single ring of carbon and nitrogen atoms. ...
Slides - gserianne.com
Slides - gserianne.com

... Figures from: Alberts et al., Essential Cell Biology, Garland Press, 1998 ...
DNA History, Structure, and Replication – Part 2
DNA History, Structure, and Replication – Part 2

... A. The process of making of a complete copy of an entire length of DNA. (Applies to all Chromosomes.) 1. This occurs during the S-Phase of the Cell Cycle for Mitosis or Meiosis. B. It is easy to do for cells because the two sides are Complimentary (A with T and C with G always.) C. The Semi-conserva ...
Nucleic Acids
Nucleic Acids

... Histones – proteins used to wrap the loose strands of chromatin around and start to spool it into chromosomes Nucleosome – unit of several histones with ...
NAME: MAKING A DNA MODEL PERIOD:______ DATE:______
NAME: MAKING A DNA MODEL PERIOD:______ DATE:______

... A molecule of DNA is composed of two backbones and four types of chemical bases. The backbone is formed by a chain of alternating phosphates and sugars. Each sugar molecule provides the location for the nitrogen bases to attach. The four types of bases are adenine, thymine, guanine, and cytosine. Ty ...
DNA - Corner Canyon Honors Biology
DNA - Corner Canyon Honors Biology

... together, its shape is called double helix. • A double helix resembles a twisted ...
Unit 7 - DNA Replication
Unit 7 - DNA Replication

... Genetic engineering is a technique used by scientists to combine or splice genetic material from different organisms. Gene splicing involves changing the normal base sequences of DNA by removing a section of DNA and introducing another gene. This technique may involve the use of the bacterium Escher ...
< 1 ... 70 71 72 73 74 75 76 77 78 ... 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