Frederick Griffith. Griffith’s Achievement Discovered that bacteria goes through transformation. Set grounds for later discoveries having to do with bacteria.

Slides:



Advertisements
Similar presentations
Discovering the Structure of DNA. What is DNA? DNA = deoxyribonucleic acid Stores, transmits and copy all information Located in the cell’s nucleus.
Advertisements

10.1 DNA: The Hereditary Material
Discovering DNA: Structure and Replication
The History of DNA. Early Work Friedrich Miescher, 1869, first isolates a substance from the nucleus of cells that he calls “nuclein.” His student, Richard.
History of DNA Discovery CH 11 Section 1. History of DNA Discovery ► British biologist Frederick Griffith discovered “transforming factor” when doing.
AP Biology DNA The Genetic Material AP Biology Scientific History  The march to understanding that DNA is the genetic material  T.H. Morgan.
DNA.
Ch. 10: DNA, RNA and Protein Synthesis The discovery of DNA.
Drill “All living things have me in them. Some people call me the ‘code of life.’ I was discovered in The amount of me in a person’s body could stretch.
Deoxyribonucleic Acid
Copyright © by Holt, Rinehart and Winston. All rights reserved. ResourcesChapter menu Identifying the Genetic Material  Relate Griffith’s conclusions.
AP Biology 4/21/2015 DNA The Genetic Material: History.
AP Biology DNA The Genetic Material AP Biology Scientific History  The march to understanding that DNA is the genetic material  T.H. Morgan.
 What do you know about Gregor Mendel?  Considered the Father of Genetics  Worked with Pea plants and discovered that gene inheritance follows certain.
Key Figures to the discovery of the Double Helix.
Chapter 12 DNA and RNA Digital Illustration DNA Structure.
Part 1 Discovery of DNA & its structure
“The Blueprint of Life”
Chapter 12-1 PART I: First encounter w/ DNA. Long, long ago in the year 1928 ( about 90 years ago ) the first traces of DNA were found in a laboratory.
AP Biology DNA The Genetic Material AP Biology Scientific History  The march to understanding that DNA is the genetic material  T.H. Morgan.
DNA and RNA Griffith Griffith was trying to figure out how bacteria made people sick Griffith was trying to figure out how bacteria made people.
AP Biology DNA The Genetic Material AP Biology Scientific History  The march to understanding that DNA is the genetic material  T.H. Morgan.
DNA The Genetic Material
AP Biology Monday, 1/7/13  Collect Chp.16 Guided Reading  Any Questions???  Collect DNA Models  Start Chp.16 Notes  DNA Quiz Thursday!
History of DNA How it Was Discovered. Friedrich Miescher 1869 (Germany) Isolated deoxyribonucleic acid from nucleus of cells –Called this white, slightly.
Chapter 12 DNA and RNA.
AP Biology DNA The Genetic Material AP Biology Scientific History  The march to understanding that DNA is the genetic material  T.H. Morgan.
Ch. 10 History of DNA. DNA Scientists: Frederick Griffith (1928): worked with bacterial cells; figured out ‘transformation’….transfer of genetic material.
Background Check  Born on October 21, 1877  Was a Canadian-born American physician and medical researcher  Studied in the field of molecular biology.
DNA The Hereditary Material. The Discovery of DNA 1869 – Friedrich Miescher investigated chemical composition of DNA using pus cells. At the time, proteins.
Chapter 12 DNA: The Genetic Material Identification of the Genetic Material (DNA) In 1928, an experiment unrelated to genetics led to the discovery of.
The Structure of DNA An example of scientists building upon each others discoveries. How was it discovered that DNA was the molecule of heredity?
Molecular Genetics DNA: The Genetic Material [12.1]
AP Biology DNA The Genetic Material AP Biology Scientific History  The march to understanding that DNA is the genetic material  T.H. Morgan.
AP Biology Scientific History  March to understanding that DNA is the genetic material  T.H. Morgan (1908)  genes are on chromosomes  Frederick Griffith.
AP Biology DNA The Genetic Material AP Biology Scientific History  The march to understanding that DNA is the genetic material  T.H. Morgan.
AP Biology Lecture #30 History of the Molecular Basis for Inheritance.
AP Biology DNA The Genetic Material AP Biology Scientific History  The march to understanding that DNA is the genetic material  T.H. Morgan.
Do Now:.
AP Biology DNA The Genetic Material AP Biology Scientific History  The march to understanding that DNA is the genetic material  T.H. Morgan.
The Race to Discover DNA
The Structure of DNA (Chapter 13.1). DNA: The Genetic Material Genes are made up of small segments of deoxyribonucleic acid or “DNA” DNA is the primary.
History of DNA Scientific history The journey to understanding that DNA is our genetic material T.H. Morgan (1908) Frederick Griffith (1928) Avery, McCarty,
DNA Scientists: Oswald Avery By: Cliff Henrice, Dillon Himes, and Jared Weber.
AP BIOLOGY DNA History & Structure. Nucleic Acid Structure.
Who: Frederick Griffith When: 1928  What did they do: Experimented with mice using 2 strains of pneumonia bacteria (one harmful and one harmless)  He.
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.
The History of DNA How we know what we know Scientific History The march to understanding that DNA is the genetic material –T.H. Morgan (1908) –Frederick.
+ The Hunt for DNA Chapter British scientist – Frederick Griffith - Griffith isolated 2 types of pneumonia bacteria: S strain – - R strain.
1868 FREDRICK MEISCHER half nucleus is protein & ? SOMETHING ELSE.
6/23/2016SB2a1 DNA and RNA 6/23/2016SB2a2 SB2a Students will analyze how biological traits are passed on to successive generations. Students will analyze.
By Kristie Akl. DNA RNA Protein Scientists call this the: Central Dogma of Molecular Biology!
Avery-MacLeod-McCarty
Objective: Discuss DNA and base pairing
Discovering the Structure of DNA
The Discovery of DNA HHMI video - 18 minutes
DNA and The Genome Structure of DNA: Experimental Evidence
12.1 Identifying the Genetic Material
DNA: The Hereditary Material
History of The discovery of DNA
DNA Structure Standard 3.1.1
Genetic Material.
Genetic Material.
12.1 Identifying the Genetic Material
DNA’s Discovery.
Chapter 12-1 DNA Part 1.
Experiments that led to the discovery of DNA
Genetic Material.
Presentation transcript:

Frederick Griffith

Griffith’s Achievement Discovered that bacteria goes through transformation. Set grounds for later discoveries having to do with bacteria.

Griffith’s Research Frederick Griffith’s research showed that dead bacteria could still pass on their disease causing DNA to harmless bacteria. He called this transformation.

Griffith’s Experiment

Possible Mistakes Oswald Avery thought that Griffith had conducted his experiments without a definite control group. Avery also believed that Griffith’s experiment was conducted poorly and there was a chance the mice had died from contamination instead of the bacteria.

Who It Helped Griffith’s discovery later helped out in the Avery-MacLeod experiment on how DNA is the substance that causes bacteria transformation. Watson and Crick later went off Griffith’s work in their 1953 paper telling of DNA’s molecular structure.

Works Cited rk_and_legacy m periment.html