• 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
Lecture 11 Analysis of Gene Sequences Anatomy of a bacterial
Lecture 11 Analysis of Gene Sequences Anatomy of a bacterial

... recognized because of mutations in the gene that give an observable phenotypic change. Historically, many genes have been discovered because of their effects on phenotype. Now, in the era of genomic sequencing, many genes of no known function can be detected by looking for patterns in DNA sequences. ...
Meiosis
Meiosis

... Only genes need by that cell are expressed. Each cell only expresses the portion of the DNA containing the genetic information for the proteins required by that cell at that time. The remainder of the DNA is not expressed Example: ...
Teacher Notes Protein Synthesis
Teacher Notes Protein Synthesis

... Teacher Notes: The intent of this activity is that the student will go through a process simulating proteins synthesis. (Transcription and translation) The end result is a key chain which represents a protein. 1. Print 2 DNA template pages. Use one to make the key - color each amino acid with the co ...
Genetics and Heredity
Genetics and Heredity

... Tay-Sachs disease is caused by a dysfunctional enzyme that fails to break down brain lipids of a certain class. Is proportionately high incidence of TaySachs disease among Ashkenazic Jews, Jewish people whose ancestors lived in central Europe Sickle-cell disease, which affects one out of 400 Africa ...
Genetics and Heredity
Genetics and Heredity

... Tay-Sachs disease is caused by a dysfunctional enzyme that fails to break down brain lipids of a certain class. Is proportionately high incidence of TaySachs disease among Ashkenazic Jews, Jewish people whose ancestors lived in central Europe Sickle-cell disease, which affects one out of 400 Africa ...
File
File

... stretch 10 billion miles—from here to Pluto and back. ...
Module_2_Key_Facts
Module_2_Key_Facts

... Formation of gametes by meiosis, followed by fertilisation, maintains a constant chromosome number from generation to generation. After the ovum is released from the ovary, it moves slowly along the oviduct. The sperms, which have limited energy stores because of their tiny cytoplasm, must swim up t ...
B2 Topic 1: The building blocks of cells Light microscope Light
B2 Topic 1: The building blocks of cells Light microscope Light

... o However, extracting the embryonic stem cells kills the embryo o some people think that because embryos go on to develop into people, destroying embryos is the same as murder Two ways scientists are trying to solve this issue: 1. Use adult stem cells to make cloned embryos the embryonic stem cells ...
Lecture
Lecture

... Polymorphism) marker—detect to transferring to membrane. Probe w southern blot (radiological). Diff. RFLP for dif. People. Single rflp • 1985 - Alec Jeffreys discovers multilocus VNTR (variable number of tandem repeats) probes (stat. very impressive identical 4-6 bp that are spec. 7 and 9 repeat, on ...
Handout
Handout

... Genotype - the genetic makeup of an organism, the genes which encode particular characteristics of the organism (collection of genes). Determined by actual DNA sequence (gene) written pyrBPhenotype - the actual, expressed properties (observed) of the gene. The result of phenotype is a protein (or co ...
Pedigree
Pedigree

... By Cutting DNA from one organism and inserting fragments into a host Recombinant DNA Alters the allele frequency of a population by artificial ...
Pedigree
Pedigree

... By Cutting DNA from one organism and inserting fragments into a host Recombinant DNA Alters the allele frequency of a population by artificial ...
No Slide Title
No Slide Title

... (A) a component on a new type of microscope to allow cell components to be easily visualized (B) the laboratory tool developed by Robert Hooke in the 1660s that he used to discover cells (C) a tool used by cell biologists for separating and comparing cell components based on size and density (D) a c ...
Haploid (__)
Haploid (__)

... The order by which the __________ are grouped will determine what kind of ___________they will form i.e--nerve tissue, muscles, skin etc. The protein is made up of _____________ linked together by ______________bonds many of these form a ______ There are __________different AMINO ACIDS---see page 30 ...
feature - Schlick Group at NYU
feature - Schlick Group at NYU

... of Corrina Bower, and will run from January to December 2003. • Genetic Expressions: Art After DNA, at the Heckscher Museum of Art, Huntington, New York. Curated by Elizabeth Meryman and Lynn Gamwell, the exhibition will run from 28 June to 7 September 2003. • From Code to Commodity: Genetics and Vi ...
DNA - Wiley
DNA - Wiley

... X-ray crystallographic data showed the bond lengths and angles of purine and pyrimidine bases ...
Name
Name

... B. DNA Replication: If the DNA sequence is AGTCCT, what would be the newly replicated sequence? ___________________________ What enzyme is responsible for this process? Where does this occur? __________________________ _________________________________________________________________________________ ...
GBE 305 MOLECULAR BIOLOGY II
GBE 305 MOLECULAR BIOLOGY II

... Hours/Week : 5 ...
Wiki - DNA Fingerprinting, Individual Identification and Ancestry
Wiki - DNA Fingerprinting, Individual Identification and Ancestry

... A typical genetic fingerprint, which looks on average at ten different microsatellites, does not reveal anything about your personality, your mental capabilities, your ethnicity or possible predispositions to disease. However, exhaustive studies on human populations from all over the world have show ...
fall final study guide
fall final study guide

... both males and females. a. True b. False 16. The law of independent assortment applies only to genes that are a. sex-linked. b. located on different chromosomes or are far apart on the same chromosome. c. located on the same chromosome. d. autosomal. 17. Humans can have blood phenotypes of A, AB, B, ...
Microbial Genetics - Montgomery College
Microbial Genetics - Montgomery College

... ƒ Horizontal gene transfer: The transfer of genes between cells of the same generation. Transformation ƒ Purpose of transformation? ƒ mechanism of transfer of genetic info among bacteria ƒ occurs naturally with linear pieces of DNA ƒ under laboratory conditions certain bacteria can be made “competen ...
Thao_Molecular cell
Thao_Molecular cell

... of all cellular organisms and most viruses.  DNA; the gigantic molecule which is used to encode genetic information for all life on Earth.  A human cell contains about 2 meters of DNA. DNA in the body could stretch to the sun and back almost 100 times. So it is tightly packed.  DNA responsible fo ...
DNA, Genes and Chromosomes
DNA, Genes and Chromosomes

... contains the information to code for one specific protein; a __________ is made up of many of these DNA __________ is the process in which a identical copy of DNA is formed for a new cell (mitosis) Chromosomes are found in the _________ of eukaryotic organisms and the __________ of prokaryotic ...
9.1 Manipulating DNA
9.1 Manipulating DNA

... • The three steps of PCR occur in a cycle. 1. heat is used to separate double-stranded DNA molecules 2. primers bind to each DNA strand on opposite ends of the segment to be copied 3. DNA polymerase binds nucleotides together to form new strands of DNA ...
Presentation
Presentation

... – generalized~ random transfer of host cell chromosome – specialized~ incorporation of prophage DNA into host chromosome ...
< 1 ... 196 197 198 199 200 201 202 203 204 ... 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