Genetics DNA HISTORY.  Read this quote and write a 3-4 sentence paragraph explaining how this might relate to our theme of biology: everything is interconnected.

Slides:



Advertisements
Similar presentations
The Race to Discover DNA
Advertisements

End Show Slide 1 of 37 Copyright Pearson Prentice Hall Biology.
End Show Slide 1 of 37 Copyright Pearson Prentice Hall Biology.
DNA. 12–1 DNA Griffith and Transformation I Griffith and Transformation In 1928, British scientist Fredrick Griffith was trying to learn how certain.
The Genetic Code Chapter 8 in your textbook
12. 1 DNA: The Genetic Material. 1)Griffith injects mice with disease causing bacteria  the mice die 2)Griffith injects mice with harmless bacteria 
End Show Slide 1 of 37 Copyright Pearson Prentice Hall 12–1 DNA.
The Secret Code. Genes Genes are known to: –Carry information from one generation to the next. –Put that information to work by determining the heritable.
DO NOW What is DNA? What does DNA look like? How do we use DNA in everyday life?
12-1 DNA.
DNA: The Stuff of Life. Griffith and Transformation In 1928, British scientist Fredrick Griffith was trying to learn how certain types of bacteria caused.
EQ: How did the structure of DNA lead scientist to the function of the molecule?
What is DNA? Where is it located?
DNA Structure and Function Chapter 13. Miescher Discovered DNA 1868 Johann Miescher investigated the chemical composition of the nucleus Isolated an organic.
DNA Structure and Function Chapter 12. Miescher Discovered DNA 1868 Johann Miescher investigated the chemical composition of the nucleus Isolated an organic.
DNA Structure and Function Chapter 13. Miescher Discovered DNA 1868 Johann Miescher investigated the chemical composition of the nucleus Isolated an organic.
The History and the Discovery of DNA Fredrick Griffith §Proved that traits were heritable, l traits could be passed from one generation to the next.
DNA: Deoxyribonucleic Acid. I. Molecule for Heredity A. Scientists needed a molecule that could carry 3 main functions: 1. Carry genes from generation.
DNA & RNA DNA.
Nucleic Acids Ex. Deoxyribose Nucleic Acid (DNA) Ribonucleic Acid (RNA)
12–1 DNA Photo credit: Jacob Halaska/Index Stock Imagery, Inc.
DNA: The Stuff of Life. Griffith and Transformation In 1928, British scientist Fredrick Griffith was trying to learn how certain types of bacteria caused.
Slide 1 of 37 Copyright Pearson Prentice Hall Biology.
Chapter 12 DNA and RNA.
The Discovery of DNA. The DNA Revolution In 1928, Griffith discovered that a factor in heat-killed, disease causing bacteria can “ transform” harmless.
Chapter 10. Do Now: Read ) Define bacteriophages 2) Why are viruses on the fence between life and nonlife? 3) What are we going to explore in.
13.1: The Structure of DNA.
DNA Structure and Function Chapter 13. Miescher Discovered DNA Johann Miescher investigated the chemical composition of the nucleus Johann Miescher.
Nucleic Acids “Informational Polymers”: Code for all of the proteins in an organism Polymer: Nucleic Acid Monomers: Nucleotides Each Nucleotide is made.
History Of DNA Notes The Search and Discovery of Genetic Material.
DNA - Transformation 1928 – Fredrick Griffith discovers non-virulent bacteria (Streptococcus pneumoniae) become virulent when in contact with dead pathogenic.
DNA.
Griffith, Avery, Hershey & Chase, Pauling, and Watson and Crick
Chapter 12-1:DNA: The Genetic Material Section objectives: –Describe the experiments that showed that DNA is the genetic material. –List the three chemical.
NUCLEIC ACIDS Chapter 12 DNA and RNA. Where did we find Genes and who discovered them?  In 1928 Frederick Griffith tried to figure out how bacteria made.
Jeopardy DNA1 DNA2 DNA3 DNA4 DNA5 Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500 Final Jeopardy.
Copyright Pearson Prentice Hall
DNA. How was DNA discovered? There were 3 major experiments that led to the discovery of DNA as the genetic material. –Griffiths Transformations –Avery.
1 DNA. 2 DNA  Deoxyribonucleic acid  found in the nucleus of every cell  DNA and proteins make up chromosomes – contain traits  sections of it make.
DNA. Contained in chromosomes containing DNA and protein Nucleic acid is made up of nucleotides – Nitrogenous base – Deoxyribose sugar – Phosphate.
Question of the DAY Jan 5 In prokaryotes, DNA molecules are _______ in shape and located in the _________. In prokaryotes, DNA molecules are _______ in.
Unit 3: Molecular Genetics Section1-DNA and RNA. I. Ancient Ideas a. Hippocrates suggested traits passed through pangenes- any alterations made to self.
Do Now:.
The Race to Discover DNA
DNA Griffith’s Experiment Fredrick Griffith 1928 British scientist Wanted to see why people got sick from bacteria (pneumonia) Used mice and a strain.
Central Dogma of Molecular Biology!
DISCOVERY OF DNA Chapter Discovery of Genetic Material Scientists knew genetic information was carried on the chromosomes They did not know where.
End Show Slide 1 of 37 Copyright Pearson Prentice Hall 12–1 DNA.
How Scientists Identified DNA Frederick Griffith did a study on two strains of bacteria to find which was virulent. One formed rough colonies in.
Who: Frederick Griffith When: 1928  What did they do: Experimented with mice using 2 strains of pneumonia bacteria (one harmful and one harmless)  He.
The History of DNA. 1.Griffith- experiment showed that live uncoated bacteria acquired the ability to make coats from dead coated bacteria. He called.
Chapter 12 Section 1: DNA. Objective Describe the experiments and research that lead to the discovery of DNA as the genetic material and the structure.
Standards 5b. Know how to apply base- pairing rules to explain precise copying of DNA during semi- conservative replication.
+ The Hunt for DNA Chapter British scientist – Frederick Griffith - Griffith isolated 2 types of pneumonia bacteria: S strain – - R strain.
DNA SBI3U. WHAT MACROMOLECULE CARRIES GENETIC INFORMATION? Agenda for October 22 nd Intro DNA notes 2.Create DNA.
Chapter #12 – DNA, RNA, & Protein Synthesis. I. DNA – experiments & discoveries A. Griffith and Transformation Frederick Griffith – British scientist.
Chapter Identifying the Substance of Genes 12.2 The Structure of DNA 12.3 DNA Replication More DNA
By Kristie Akl. DNA RNA Protein Scientists call this the: Central Dogma of Molecular Biology!
Discovering the material for heredity: DNA Ch. 13 Biology In Focus AP Biology 2014.
DNA: Deoxyribonucleic Acid
Deoxyribonucleic Acid or DNA
DNA Structure and Function
Unit 9 Part 1 DNA.
Chapter 12.1 DNA.
DNA Deoxyribonucleic Acid
How do we know it’s our genetic material?
DNA: The Genetic Material
DNA Deoxyribonucleic Acid
History of DNA.
History of DNA.
Presentation transcript:

Genetics DNA HISTORY

 Read this quote and write a 3-4 sentence paragraph explaining how this might relate to our theme of biology: everything is interconnected  “A genetic material must carry two jobs: duplicate itself and control the development of the rest of the cell in a specific way”  Francis Crick DO NOW

 Do Now  Lab research activity in groups  Go over the discoveries of DNA and their researchers  Review  Worksheet AGENDA

 In biology, we now know that everything is interconnected, but we will also need to understand that…  Structure dictates function NEW THEME OF BIOLOGY

GRIFFITH

 Harmful smooth (s-strain) and harmless rough (R- strain) of pneumonia in mice to see which one was deadly  Mixed dead S and live R strains= deadly and killed mouse  Dead S cells= mouse is alive  Live R cells= mouse is Alive  Why?  Griffith wanted to know WHAT was transferred between S and R strains?  DNA!!!! GRIFFITH

HERSHEY AND CHASE

 Wanted to know whether protein or DNA was the material transferred  Bacteria and Viruses were used  Radioactive sulfur and phosphorus were used to label protein and DNA, respectively  Found that phosphorus was inside the bacteria, so they stated that DNA was the genetic material, NOT protein HERSHEY AND CHASE

 Discovered the different types of sugars present within RNA and DNA  Found that DNA has deoxyribose and RNA has ribose sugars  Important in knowing the structure of DNA LEVENE

 Discovered the ratios of ACGT within DNA  Chargaff’s rule: states that there is an even proportion of A to T and G to C  A=T  G=C CHARGAFF

 Discovered DNA was SYMMETRICAL and regular  Used x-ray crystallography to discover the structure FRANKLIN

 Found that A and T go together and G and C.  Deduced the 3D structure of DNA WATSON AND CRICK

 What molecule was determined to not be the carrier of genetic information?  Protein  What scientists made this discovery? What did they use to discover this?  Hershey and Chase/ viruses and bacteria  Who discovered the structure of DNA/RNA sugars?  Levene REVIEW

 What is Chargaff’s rule?  There is an even amount of A to T, G to C  I have 20% adenine. How much of TG and C do I have?  20% T and 30% G and 30% C  What did Rosalind Franklin’s discovery show us about DNA structure?  Symmetrical molecule REVIEW

Feedback: Privacy Policy Feedback
Do Not Sell My Personal Information
About project: SlidePlayer Terms of Service

© 2024 SlidePlayer.com. Inc. All rights reserved.