• 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
Prentice Hall Review PPT. Ch. 12
Prentice Hall Review PPT. Ch. 12

... code? Why or why not? How do the proteins made affect the type and function of cells? Cells do not make all of the proteins for which they have genes (DNA). The structure and function of each cell are determined by the types of proteins present. 2. Consider what you now know about genes and protein ...
Unit 5: Cell Cycles and Genetics Self
Unit 5: Cell Cycles and Genetics Self

... D) Explain whether the new molecules are composed of 2 new strands, 2 old strands, or one old and one new strand. Why? 8) From the chapter 10 pages 204-206 titled "Protein Synthesis" be able to; A) Explain the primary function of RNA. B) Describe the three differences between RNA and DNA. C) Name an ...
Microbial Genetics
Microbial Genetics

... • Plasmids: self replicating circular molecules of NDA • Transposes: small segments of DNA that can move into different parts of the genome. • Can these have an effect on Evolution? ...
Chapter 14 Lecture Notes: Nucleic Acids
Chapter 14 Lecture Notes: Nucleic Acids

... responsible for your physical characteristics, such as your height, skin tone, and eye color. Human DNA contains about three million deoxyribonucleotide residues. Eukaryotic cells, which are cells having membrane-bound nuclei, have most of their DNA in the nucleus, and small amounts in other organel ...
Chapter 17~ From Gene to Protein
Chapter 17~ From Gene to Protein

INSILICO ANALYSIS OF GYRASE SUBUNITS A AND B IN PROKARYOTES
INSILICO ANALYSIS OF GYRASE SUBUNITS A AND B IN PROKARYOTES

... DNA performs two functions and manipulations. All these processes such as supercoiling-relaxation, catenationdecatenation and knotting-unknotting (folding-unfolding) of DNA are done with the help of DNA topoisomerases. Key cellular processes such as replication, transcription, recombination and chro ...
DNA Testing Info
DNA Testing Info

... a QQ sheep, all the offspring will be QR and when mated to a QR sheep, half the offspring will be RR and half will be QR. It should probably be noted that the codon 136 genotype is sometimes important. Sheep prion protein genes will be either “A” (alanine) or “V” (valine) and, therefore, sheep will ...
Document
Document

... • Extract and amplify DNA from different food samples • Perform genuine diagnostic procedures • Use PCR and electrophoresis to find GMO foods • Sufficient materials for 8 student workstations • Complete the activity in three 45 minute lab sessions ...
GMO positive control DNA - Bio-Rad
GMO positive control DNA - Bio-Rad

... • Extract and amplify DNA from different food samples • Perform genuine diagnostic procedures • Use PCR and electrophoresis to find GMO foods • Sufficient materials for 8 student workstations • Complete the activity in three 45 minute lab sessions ...
File
File

... “Synthetic” sequences can be joined to “natural” sequences using enzymes that splice DNA together. ...
X-inactivation
X-inactivation

... protein HP1 – role in organisation of heterochromatin 6. Heterochromatin is transcriptionally inactive constitutive heterochromatin does not contain any genes facultative: genes are not usually transcribed 7. Heterochromatin does not participate in genetic recombination polymorphism of heterochromat ...
here - IMSS Biology 2014
here - IMSS Biology 2014

... strip of nucleic acid (Figure 1A). (Note: these are not full genes; they are just 21 amino acid segments of the above genes with a start and stop codon inserted at the beginning and end). b. RNA: One blank RNA sheet (single stranded, green backbone) for each group. Cut between each single strand and ...
BlackBeauty`s_Forensics_Ans
BlackBeauty`s_Forensics_Ans

... 20. What insect is usually the first to come into contact with a dead body? a. Blow-flies 21. Define the meaning of a diatomic element. a. Elements that make a diatomic molecule with only the atoms of their element. 22. Please list all elements that can be diatomic. a. Hydrogen, Nitrogen, Oxygen, F ...
Prentice Hall Biology
Prentice Hall Biology

... code? Why or why not? How do the proteins made affect the type and function of cells? Cells do not make all of the proteins for which they have genes (DNA). The structure and function of each cell are determined by the types of proteins present. 2. Consider what you now know about genes and protein ...
High-Efficiency DNA Separation by Capillary Electrophoresis in a
High-Efficiency DNA Separation by Capillary Electrophoresis in a

... different amounts of urea to the mannitol-modified 2% HPMC-5 sieving buffer and plotting the migration time as a function of urea concentration (Figure 5). Figure 5 shows some unique sigmoidal curves for the DNA fragments ranging from 51 to 587 bp. Since single-stranded DNA (ss DNA) has lower mobili ...
Chapter 14 Transposons, Plasmids, and Bacteriophage
Chapter 14 Transposons, Plasmids, and Bacteriophage

... plentiful, cII protein is degraded, &, hence, lysogenic cycle is not activated – Under poor growth conditions, proteases are less abundant & there is less degradation of cII, so those promoters are activated & lysogeny is favored ...
10/24 - bio.utexas.edu
10/24 - bio.utexas.edu

... What problems exist for expressing eukaryotic gene in bacteria? Bacterial DNA ...
Poster - Department of Entomology
Poster - Department of Entomology

guidelines
guidelines

... The archive DNA lab is situated in the 13th floor. It is easily accessible from the other labs (4th floor) with the blue elevator. In this room, there is space for max. two people working at the same time. Only if you are working with old DNA, difficult museum samples etc., it is allowed to use this ...
An Introduction to Basic Cell and Molecular Biology
An Introduction to Basic Cell and Molecular Biology

... manner, DNA is made up of a repeating series of building blocks, but these are called nucleotides. Nucleotides are composed of three chemical parts: phosphate and a nitrogen-containing base, both attached to different carbon atoms of a sugar (deoxyribose in DNA). The 5 carbons in the sugar are numbe ...
Phylogenetics Molecular Phylogenetics
Phylogenetics Molecular Phylogenetics

... •  Recently diverged sequences are more similar than those from older divergences •  Sequences accumulate differences over time •  Possible to make statistical models for accumulation of differences ...
Biology 321 Spring 2013 Assignment Set 7 Reading Assignments in
Biology 321 Spring 2013 Assignment Set 7 Reading Assignments in

... http://fire.biol.wwu.edu/trent/trent/assignmentset7.9.pdf ...
011 Chapter 11 Microbial Genetics: Gene Structure Replication amp
011 Chapter 11 Microbial Genetics: Gene Structure Replication amp

... 53. Bacterial chromosomes, unlike eucaryotic chromosomes, often consist of a single replicon. True False 54. Cellular RNA molecules are always initially single stranded, but they often have double stranded regions because of internal base pairing. True False 55. Split genes have been found in both p ...
The amount if DNA in each human cell nucleus is
The amount if DNA in each human cell nucleus is

... function normally. Severe human diseases, such as mental retardation, immunodeficiencies, and cancer, are caused by changes in the coding regions of certain genes. Neurofibromatosis, a tumor disease, is an example of a human disease caused by the insertion of an Alu transposon into the coding region ...
Study questions - Pre-lab
Study questions - Pre-lab

... We mean that it’s not necessarily causal to the phenotypic trait. The SNP segregates with the trait, but it may or may not be its underlying cause (for example, the SNP DNA may be in very close proximity to the DNA underlying the trait). e. Why do you think the three SNPs in the TAS2R38 gene are inh ...
< 1 ... 92 93 94 95 96 97 98 99 100 ... 294 >

Nucleic acid double helix



In molecular biology, the term double helix refers to the structure formed by double-stranded molecules of nucleic acids such as DNA. The double helical structure of a nucleic acid complex arises as a consequence of its secondary structure, and is a fundamental component in determining its tertiary structure. The term entered popular culture with the publication in 1968 of The Double Helix: A Personal Account of the Discovery of the Structure of DNA, by James Watson.The DNA double helix polymer of nucleic acids, held together by nucleotides which base pair together. In B-DNA, the most common double helical structure, the double helix is right-handed with about 10–10.5 base pairs per turn. This translates into about 20-21 nucleotides per turn. The double helix structure of DNA contains a major groove and minor groove. In B-DNA the major groove is wider than the minor groove. Given the difference in widths of the major groove and minor groove, many proteins which bind to B-DNA do so through the wider major groove.
  • studyres.com © 2026
  • DMCA
  • Privacy
  • Terms
  • Report