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... DNA replication begins at specific sites on the double helix referred to as origins of replication. ... The Results Found that when the bacteria has been infected with T2 phages containing labeled protein, ... Figure 10.4A Template model for DNA replication First, ...
Date added: November 27, 2013 - Views: 12
... * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * Fig. 14.19 DNA replication unwinding and opening DNA the twisted double helix must be ... labeled with either 35S to ... a helix Structure of DNA: the double helix the accepted model for the structure of the ...
Date added: March 11, 2013 - Views: 8
... = 30.9% T = 29.4% G = 19.9% C = 19.8% Consider This Brief Film Strip Structure of DNA Watson & Crick developed double helix model of DNA other leading scientists working ... Protein coat labeled with 35S DNA labeled with 32P bacteriophages infect bacterial cells T2 ...
Date added: January 29, 2012 - Views: 32
Three Models of DNA Replication Conservative model Parent molecule remains the same Completely new copy of the double helix is made Semiconservative model ... labeled viruses were isolated from the culture and used to REINFECT new host cells Batch 1 = protein labeled Batch 2 = DNA labeled ...
Date added: October 11, 2011 - Views: 67
Their model is the famous double helix. Watson & Crick’s Model of DNA. Shaped like a double helix (spiral staircase) Base-pairing rules ... The end of each side of the DNA molecule that has the “free” phosphate is labeled 5’ and the other end is labeled 3’.
Date added: June 5, 2013 - Views: 9
... DNA contains phosphorus Protein contains sulfur Radioactively labeled phosphorus and sulfur in two ... DNA Structure Double helix 2 strands twisted around each ... DNA Structure Nucleotide Structure Four Nucleotides Base Pairing Chargaff’s Rule Double Helix First DNA Model ...
Date added: August 5, 2013 - Views: 6
How do we know that the structure of DNA is in the form of a right-handed double helical model? How do we know that in DNA, ... infects E. coli bacteria. Phages are labeled with ... and MINOR grooves along the length of the molecule. The double helix has a diameter of 2.0 nanometers (20 ...
Date added: February 28, 2014 - Views: 1
... phosphorus-32 labeled the DNA because it contains phosphorous and ... The spiral shape of DNA is known as a double helix. Each strand of DNA is made up ... Watson and Crick used both Chargaff’s data and the X-ray diffraction studies to create a complete three-dimensional model of DNA.
Date added: April 27, 2012 - Views: 11
... KEY CONCEPTS transforming principle in bacteria is DNA experiments with labeled T2 phage establish that DNA is the hereditary material ... Chargaff DNA STRUCTURE DNA double helix (space filling model) several forms... A, B & Z DNA DNA REPLICATION model of replication ...
Date added: June 29, 2014 - Views: 1
... Wilkins and Franklin’s X-ray diffraction (196) Watson and Crick’s DNA model and pairing ... of DNA, can it leave the nucleus? Analysis question 2 Draw a labeled diagram of your DNA ... of WB 34 Structure of DNA Double stranded helix Deoxyribose sugar Phosphate group ...
Date added: October 30, 2011 - Views: 57
... bacteria Batch 1 Labeled protein coats with radioactive sulfur Radioactivity detected outside of the cells Batch 2 Labeled DNA with ... Rosalind Franklin and Maurice Wilkins X-ray crystallography DNA = helix shape Watson and Crick Made model of double helix using Franklin’s ...
Date added: November 14, 2013 - Views: 1
Then they allowed protein labeled and DNA-labeled phage to separately infect E ... DNA Double Helix. i. In 1950’s Watson and Crick teamed up to determine ... Iii. Watson and Crick . created a model of DNA . by using Franklin and . Wilkin’s DNA diffraction . X-rays. Iv. Received the Nobel ...
Date added: April 23, 2014 - Views: 1
... 1944 Determined that “IIIS” DNA was the genetic ... Infected E. coli bacteria with two types of labeled T2 4. 32P is ... Nobel Prize in Physiology or Medicine 1969 * Structure of DNA James D. Watson/Francis H. Crick 1953 proposed the Double Helix Model based on two ...
Date added: July 13, 2012 - Views: 34
The sugar in the backbone of DNA is: Glucose Ribose Deoxyribose Lactose In the DNA double helix ... Radioactive DNA (blue) Radioactive protein (yellow) Conclusion: Infected bacteria are labeled ... (without her permission!), Watson and Crick assembled the first plausible model of DNA ...
Date added: March 26, 2014 - Views: 3
... (DNA takes in the 32P) 35S-labeled and 32P–labeled phages were used to infect E.Coli ... chains of nucleotides April 25th, 1953 James Watson & Francis Crick (England) Built the 1st accurate 3D (tin and wire) model of DNA “Double Helix” ... and opens up the double helix forming ...
Date added: April 3, 2014 - Views: 1
... Watson and Crick proposed that DNA is a double helix Structure of ... with T and C with G Molecule is a double helix Watson-Crick Model Patterns of Base Pairing Rosalind Franklin’s Work Was an expert in x ... DNA strand * * * virus particle labeled with 35S DNA ...
Date added: August 8, 2013 - Views: 6
James Watson's unflattering portrayal of Franklin in his account of the discovery of DNA's structure, entitled "The Double Helix," depicts ... Protein coat labeled with 35S DNA labeled with 32P bacteriophages infect ... Structure of DNA Watson & Crick developed double helix model of DNA other ...
Date added: March 22, 2012 - Views: 12
... Labeled bacteria with radioisotopes 35Sulfur 32Phosphorus Erwin Chargaff Biochemist Figured out the ... they discovered that it showed an X shape Constructed a model of DNA Double-helix model is similar to a twisted ladder Sugar-phosphate backbones make up the sides Hydrogen ...
Date added: May 3, 2013 - Views: 8
... the DNA double helix is said to ... would become part of the phages’ DNA Step 2 Labeled phages used to ... Slide 12 Discovering DNA’s Structure Wilkins & Franklin’s Photographs Rosalind Franklin Watson & Crick’s DNA Model Pairing Between Bases HOMEWORK The ...
Date added: November 15, 2011 - Views: 67
1953, Watson and Crick Made tin and wire model of the DNA’s double helix. Watson and Crick’s discovery was HUGE! Watson and Crick Complimentary Base Pairs Adenine (purine) pairs with Thymine (pyrimidine) . ... Radioactive Sulfur used to labeled the protein coat of phage.
Date added: November 3, 2013 - Views: 7
... with nitrogenous bases as appendages The sequence of bases along a DNA or mRNA polymer is unique for each gene The DNA Double Helix A DNA ... Parent cell First replication Second replication Experiments by Meselson and Stahl supported the semiconservative model They labeled the ...
Date added: September 7, 2012 - Views: 37
... forming a double helix James D. Watson & Francis H. Crick In 1953 presented the double helix model of DNA Two primary ... Semiconservative replication Conservative replication Dispersive replication Meselson-Stahl Experiments Labeled the nucleotides of old strands with a heavy ...
Date added: October 17, 2011 - Views: 24
Allowed protein labeled and DNA labeled phage to ... _____that are ready to move to new cells in cell division Semi-conservative replication Each new DNA double helix, one strand is from the original molecule and one strand is new Figure 16.7 A model for DNA replication: the ...
Date added: January 17, 2014 - Views: 5
... labeled virus DNA with phosphorus Protein coat DNA ... forming a double helix G and C are complementary as are A and T The two strands ... forming a helix Watson and Crick were clued by Franklin’s xray and it enabled them to build a model depicting DNA’s structure and ...
Date added: May 19, 2013 - Views: 2
When they examined the bacterial cultures with T2 phage that had radio-labeled DNA, most of the radioactivity was in the pellet with the bacteria. ... In April 1953, Watson and Crick published a succinct, one-page paper in Nature reporting their double helix model of DNA.
Date added: May 9, 2012 - Views: 9
... conservative model and the dispersive model LE 16-10 Experiments by Meselson and Stahl supported the semiconservative model They labeled the ... untwists the double helix and separates the template DNA strands at the replication ... double helix. Semiconservative model.
Date added: August 23, 2011 - Views: 60
... Discovered the basic structure of DNA by x-ray crystallography James Watson and Francis Crick Built the first accurate model of a DNA molecule Key ... DNA replication. Each strand of a DNA double helix is ... 32P remains inside cells Virus DNA labeled with 32P Labeled DNA ...
Date added: October 2, 2012 - Views: 41
... Radioactively labeled the DNA core and protein capsid of a phage Results ... 1953 Constructed a model of DNA Double-helix model is similar to a twisted ladder Sugar-phosphate backbones make up the sides Hydrogen-bonded bases make up the rungs Received a Nobel Prize in 1962 X-Ray ...
Date added: July 10, 2014 - Views: 1
What is the shape of DNA? Double Helix. ... They radioactively labeled the DNA and the protein ... Watson and Crick build a model of DNA and determine it is a double helix. DNA Structure. DNA is a double helix. DNA Structure. It is made of . nucleotides
Date added: February 5, 2014 - Views: 3
... A = 30.9% T = 29.4% G = 19.9% C = 19.8% Structure of DNA Watson & Crick developed double helix model of DNA other ... Alfred Hershey Martha Chase Protein coat labeled with 35S DNA labeled with 32P bacteriophages infect bacterial cells T2 bacteriophages are labeled ...
Date added: December 27, 2012 - Views: 8
Watson and Crick created a model for the structure of DNA ... Requires DNA Polymerase DNA Replication Double helix structure explained how DNA ... isotopes Hershey and Chase’s Results used radioactive isotopes to label the DNA and protein in a bacteriophage labeled DNA with ...
Date added: April 22, 2014 - Views: 10
DNA Double Helix Double Helix Nucleotides A Winding ... The double-helical model of DNA takes into account Chargaff’s ... What is the function of the structure labeled A? A. separating DNA strands B. reconnecting DNA strands C. adding nucleotides to make new DNA strands ...
Date added: December 21, 2013 - Views: 6
... 1952 used bacteriophage T2 infection as model DNA labeled with 32P; ... Rosalind Franklin The Race for the Double Helix Nucleic Acid Composition DNA and RNA Nucleotides Deoxyribose in DNA Double Helix DNA Structure Double helix ...
Date added: February 24, 2012 - Views: 43
Double-helix model of DNA - Watson & Crick ... Infected E. coli bacteria with two types of labeled T2 4. 32P is discovered within the ... 5’ end 3’ end Fig. 2.9 Structure of DNA James D. Watson/Francis H. Crick 1953 proposed the Double Helix Model based on two sources of ...
Date added: September 7, 2013 - Views: 2
The DNA Double Helix 7b. The DNA Double Helix Chargaff’s Rules ... The solenoid model proposes that the nucleosomes form a spiral with 6 nucleosomes per turn ... (Figure 2.6). 4.3. The 35S-labeled protein was found outside the infected cells, while the 32P-labeled DNA was inside the E ...
Date added: May 19, 2013 - Views: 7
... STOP Some Great Resources http://nobelprize.org/educational_games/medicine/dna_double_helix/index.html DNA games Discovery of DNA 1928 ... bacteriophages) They radioactively labeled the DNA and ... Watson and Crick build a model of DNA and determine it is a double helix DNA ...
Date added: February 20, 2014 - Views: 11
... A = 30.9% T = 29.4% G = 19.9% C = 19.8% Structure of DNA Watson & Crick developed double helix model of DNA other scientists working ... Protein coat labeled with 35S DNA labeled with 32P bacteriophages infect bacterial cells T2 bacteriophages are labeled with radioactive isotopes S ...
Date added: September 1, 2013 - Views: 1
... opposite directions Strands are held together by hydrogen bonds between bases A binds with T and C with G Molecule is a double helix Watson-Crick Model DNA Structure ... Figure 13.3 Page 218 cytoplasm bacterial cell wall plasma membrane Figure 13.4b Page 219 virus particle labeled ...
Date added: December 13, 2013 - Views: 4
... page paper in Nature reporting their double helix model of DNA Experiments in the late 1950s by Matthew Meselson and Franklin Stahl supported the semiconservative model, proposed by Watson and Crick, over the other two models. In their experiments, they labeled the nucleotides of the old ...
Date added: November 1, 2012 - Views: 19
... Purine nucleotides Figure: E9-1 Title: The discovery of DNA Caption: James Watson and Francis Crick with a model of DNA ... Strands of DNA wind about each other in a double helix, like ... membrane virus particle labeled with 35S virus particle labeled with 32P bacterial cell ...
Date added: August 1, 2013 - Views: 1
Protein coat labeled with 35S DNA labeled with 32P bacteriophages infect bacterial cells ... Rules A = T C = G Paired bases DNA structure double helix 2 sides ... its shape is called double helix. The structure of DNA Ribbon model Hydrogen bond Partial chemical structure Computer model ...
Date added: September 7, 2011 - Views: 64
James Watson's unflattering portrayal of Franklin in his account of the discovery of DNA's structure, entitled "The Double Helix," depicts ... Protein coat labeled with 35S DNA labeled with 32P bacteriophages infect bacterial ... DNA Watson & Crick developed double helix model of DNA other ...
Date added: March 14, 2014 - Views: 1
... DNA Double Helix James ... while any new nucleotides were labeled with a lighter isotope The first replication produced a band of hybrid ... Slide 6 Slide 7 Double-helical Model for DNA LE 16-UN298 LE 16-8 LE 16-7 Many proteins work together in DNA replication and repair ...
Date added: January 18, 2014 - Views: 1
... viral proteins remained outside the host cell during infection Radioactively-labeled (phosphorus) viral DNA traveled inside ... This buckles the DNA double helix and interferes with DNA ... A second replication produced both light and hybrid DNA, eliminating the dispersive model and ...
Date added: September 27, 2013 - Views: 4
... No labeled DNA No viral ... Photo 51 indicated that DNA was a double helix or a ... around each other James Watson and Francis Crick used Franklin and Wilkin’s data and Chargaff’s data to create the double helix model Watson and Crick’s DNA Model Two outside strands consist of ...
Date added: August 23, 2011 - Views: 289
... A = 30.9% T = 29.4% G = 19.9% C = 19.8% Structure of DNA Watson & Crick developed double helix model of DNA other leading ... Protein coat labeled with 35S DNA labeled with 32P bacteriophages infect bacterial cells T2 bacteriophages are labeled with radioactive isotopes ...
Date added: November 7, 2011 - Views: 21
... double helix (2 nm in diameter) Nucleosome (10 nm in diameter) Histones Histone tail H1 DNA, the double helix Histones Nucleosomes, or ... the semiconservative model They labeled the nucleotides of the ... Presentation Building a Structural Model of DNA: ...
Date added: January 9, 2014 - Views: 6
_____ were responsible for the discovery of the double helix structure of DNA. ... Answer the Following. The model of DNA is known as a _____ because it is composed of two ... Draw Neat labeled diagrams of. Structure of DNA. DNA Replication. In double stranded DNA ...
Date added: May 3, 2013 - Views: 11
... Experiments by Matthew Meselson and Franklin Stahl supported the semiconservative model They labeled the nucleotides of the old ... (10 nm in diameter) Histones Histone tail H1 DNA, the double helix Histones Nucleosomes, or “beads on a string” (10-nm fiber) Fig. 16-21b 30-nm ...
Date added: May 10, 2014 - Views: 1
... unwinds the DNA double helix. Single-Strand ... Used Tracers Protein - CHONS, can trace with 35S. DNA - CHONP, can trace with 32P. Experiment Used phages labeled with one tracer or ... Held together by H-bonds. Chargaff’s Rule Explained by double helix model. A = T, 3 ring ...
Date added: May 31, 2013 - Views: 6