Molecular Genetics Structure of DNA. Phoebus Levene (1920’s) identified the 3 components of DNA molecule –deoxyribose sugars –phosphate groups –nitrogenous.

Slides:



Advertisements
Similar presentations
Nucleic Acids The Genetic Material. Two types of Nucleic acids RNA RNA DNA DNA.
Advertisements

DNA’s Discovery and Structure. Scientists that determined DNA’s Structure and Importance 1866 Gregor Mendel – demonstrated that parents pass traits.
Macromolecules Three: Nucleic Acids Biology Standard 1d.
DNA Structure. The Chemical Composition of DNA DNA is made of 3 different components: a deoxyribose sugar, a phosphate group, and a nitrogenous base.
Discovering DNA structure History activity. Erwin Chargaff Worked with numbers of chemical molecules Look at the molecules in your bag – These are VERY.
The Structure of DNA DNA Has the Structure of a Winding Staircase
Topic 3.4 DNA Replication.
The structure of DNA.
KEY CONCEPT DNA structure is the same in all organisms.
DNA: The Genetic Material Chapter DNA Structure DNA is a nucleic acid. The building blocks of DNA are nucleotides, each composed of: –a 5-carbon.
Objectives 12.2 The Structure of DNA
DNA “Deoxyribonucleic acid”
Molecular Genetics History of DNA. Discovery of DNA Friedrich Miescher (late 1860s) - collected used bandages at hospitals and immersed in salt solution.
The Structure of DNA.
Warm Up Where is DNA located within a cell? Why is DNA important?
Date DNA. ✤ DNA stands for deoxyribonucleic acid ✤ DNA carries all the genetic information of living organisms.
The Structure of DNA The building block of DNA (and RNA) is the nucleotide. Each nucleotide has 3 parts: A sugar (deoxyribose in DNA) A phosphate group.
Tuesday 12/2/2014 Q2 WK6 D1 Agenda: DNA  Notes: DNA  Activity: DNA Reading and Coloring  Homework :  DNA Reading (Annotations) and Coloring Due Wednesday/Thursday.
CHAPTER 11 relating the structure of DNA to its function the role of DNA in protein production distinguish amongst different types of mutations.
Objectives 12.2 The Structure of DNA -Identify the chemical components of DNA. -Discuss the experiments leading to the identification of DNA as the molecule.
Assessment Statements: Describe the structure of DNA.
Chapter 8: DNA and RNA Section 8-2A: DNA Structure.
DNA Structure.
DNA’s Discovery and Structure. Scientists that determined DNA’s Structure and Importance 1866 Gregor Mendel – demonstrated that parents pass traits to.
Introduction to DNA (Deoxyribonucleic acid). What do you know?
Understanding DNA Deoxyribonucleic Acid. Rosalind Franklin & Maurice Wilkins.
Understanding DNA Deoxyribonucleic Acid Double Helix: Two strands twisted around each other like a winding staircase.
And the RACE BEGINS! Once DNA was identified as the genetic molecule the race was on to determine its structure. The combined work of different researchers.
DNA The Code of Life. Fredrich Mischer In 1868, a Swiss physician found a new substance inside of cells and named it nuclein. This substance is now known.
LS: I will be able to distinguish the difference between DNA and RNA. LS: I will be able to explain the historical process of the discovery of DNA.
DNA and RNA – DNA image.
DNA STRUCTURE. Where is DNA located? Prokaryotic vs Eukaryotic.
DNA Review. Every nucleotide is made up of… 1.Sugar 2.Phosphate 3.Nitrogen base 4.All of the above.
DNA Structure, Function & Replication. DNA stands for… DeoxyriboNucleic Acid.
The Structure of DNA Read the title aloud to students.
DNA Introduction. What is DNA? Genetic information of life Type of Nucleic Acid Double Stranded.
Unlocking the mystery of DNA. Cell division and DNA replication Cells divide Growth, Repair, Replacement Before cells divide, they have to double cell.
8.2 Structure of DNA KEY CONCEPT DNA structure is the same in all organisms. Deoxyribonucleic Acid.
DNA (Deoxyribonucleic Acid). What is DNA? DNA is an encoded molecule that determines traits by giving instructions to make proteins.
DNA (Deoxyribonucleic Acid). Watson and Crick DNA Molecules x8b8Ihttp:// x8b8I.
Deoxyribonucleic Acid DNA. Organism Cell Chromosome Gene DNA Nucleotide.
DNA. DNA is the organic molecule Deoxyribonucleic Acid The function of DNA is as a molecule that permanently stores the information or instructions necessary.
 DNA contains the instructions (codes) for making all the proteins in the body.
DNA Deoxyribonucleic Acid. Importance of DNA DNA is the code for making proteins Those proteins control your physical features The directions for making.
DNA and RNA. Rosalind Franklin Worked with x-ray crystallography Discovered: That DNA had a helical structure with two strands.
7a. DNA and DNA Replication Living Environment Mr. Wiley 144.
And the RACE BEGINS! Once DNA was identified as the genetic molecule the race was on to determine its structure. The combined work of different researchers.
Chapter 10 sections 1, 2,3 Student 2015.
Chapter 12.1 DNA: Molecule of Heredity
DNA Structure Chapter 8 Section 2.
Click on the words in blue to find out more
THE STRUCTURE OF DNA Section 4.2 Page 210.
And the RACE BEGINS! Once DNA was identified as the genetic molecule the race was on to determine its structure. The combined work of different researchers.
DNA and Replication.
Deoxyribonucleic Acid
Chapter 9 Section 2 The Structure of DNA.
DNA vs. RNA.
Introduction to DNA February 9th, 2016.
Chapter 9 Section 2 The Structure of DNA.
12.2 Notes The Structure of DNA
DNA DNA is a type of organic macromolecule called Deoxyribonucleic Acid DNA is made up of repeating monomers called Nucleotides DNA has a distinct shape.
DNA and its Structure.
Deoxyribonucleic Acid
Chapter 12-1, Part III DNA Structure.
DNA Structure.
Title: Nucleic Acids
Chapter 12 DNA and RNA 12-1: DNA.
DNA STRUCTURE SBI 4UI – 4.2.
Replication Makin’ copies
DNA Chapter 12.
Presentation transcript:

Molecular Genetics Structure of DNA

Phoebus Levene (1920’s) identified the 3 components of DNA molecule –deoxyribose sugars –phosphate groups –nitrogenous bases 4 nitrogenous bases identified by 1949

Erwin Chargaff (1949) isolated DNA from different organisms and measured levels of each of the 4 nitrogenous bases amt. of adenine = amt. of thymine amt. of cytosine = amt. of guanine

Rosalind Franklin produced X-ray diffraction images of DNA that suggested its double helix shape diameter 2nm, one turn 3.4nm See animation: Franklin-s-X-ray-diffraction- explanation-of-X-ray-pattern-.html Franklin-s-X-ray-diffraction- explanation-of-X-ray-pattern-.html

James Watson & Francis Crick (1952) used information from Chargaff and Franklin’s work proposed a model of DNA with a double helix of 2 anti-parallel strands won the Nobel Prize in 1962 (with Maurice Wilkins) for deducing the structure of DNA

Structure of DNA Review of 1.5 p.45-46

Nucleic Acids polymers of nucleotides: 5 carbon sugar (ribose or deoxy-) nitrogenous base C 1 phosphate group C 5

RNA vs DNA

DNA & RNA Directionality

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

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