Deoxyribonucleic Acid. Goals Who helped discover DNA? What does DNA look like? What is DNA made of? What is the job of DNA? Where does DNA come from?

Slides:



Advertisements
Similar presentations
DNA Structure and Function
Advertisements

The Structure of DNA DNA Has the Structure of a Winding Staircase
DNA: The Molecule of Heredity
DNA Deoxyribonucleic Acid. The DNA Connection What have you learned about inheritance, DNA, and cell division up to this point? How do genes determine.
DNA “Deoxyribonucleic acid”
DNA Replication.
DNA Structure Review. Questions 1.Name the term used to describe the shape of the DNA molecule. 2.What does DNA stand for? 3.What 3 chemicals make up.
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.
DNA Structure and Replication 8.2 and 8.3
 DNA (deoxyribonucleic acid) is a two stranded molecule called double helix  Each strand are made of smaller parts called nucleotides  The two strands.
DNA Deoxyribonucleic acid. History of DNA Early scientists thought protein was the cell’s hereditary material because it was more complex than DNA Proteins.
DNA & Replication Notes
DNA Structure and DNA Replication How cells make a copy of their DNA before they divide.
Introduction to DNA (Deoxyribonucleic acid). What do you know?
I. DNA: “deoxyribonucleic acid” We know traits are inherited but how are they inherited?
Question: Why don’t we all look alike? DNA – The Code for Life.
Chapter 10: DNA and RNA.
What Does It Look Like? What Does it Do?
Understanding DNA Deoxyribonucleic Acid Double Helix: Two strands twisted around each other like a winding staircase.
What do genes look like?.
Understanding DNA Deoxyribonucleic Acid Double Helix: Two strands twisted around each other like a winding staircase.
AP Biology S-Phase: Deoxyribonucleic Acid The Molecular Basis of Inheritance DNA Structure DNA Replication.
DNA: Deoxyribonucleic Acid Q2 WK6 D1 11/18/13. Scientists of DNA 1953, James Watson & Francis Crick were accredited for discovering the structure of DNA.
Characteristic of Life!!
DNA Structure, Function & Replication. DNA stands for… DeoxyriboNucleic Acid.
DNA Structure, Function & Replication. DNA stands for… DeoxyriboNucleic Acid.
 Double helix  Nucleotide  Semiconservative replication  DNA polymerase  Chromatin.
Notes 4-3 continued… DNA. Scientists Rosalind Franklin used X-ray method to take photographs of DNA Watson and Crick use the photographs and.
DNA Introduction. What is DNA? Genetic information of life Type of Nucleic Acid Double Stranded.
* Make sure tonight’s homework is written in your agenda. * Quietly, discuss and respond to the following questions (answers should be written on your.
DNA DNA (Deoxyribonucleic Acid) is the molecule that stores genetic information for all living cells.
DNA & RNA. Before We Knew about DNA  Gregor Mendel – the “father of genetics” was a monk who, in the 1800’s, was the first person to hypothesize “factors”
DNA History Function Structure Replication. History - Structure Erwin Chargaff –1950’s Discovered that the amount of A is always equal to the amount of.
DNA. Characteristics of DNA 1. Supplies instructions for cell processes, like how to make proteins 2. Can be copied each time a cell divides 3. It is.
DNA, RNA & Protein Synthesis. A. DNA and the Genetic Code 1. DNA controls the production of proteins by the order of the nucleotides.
DNA Structure. What do we know of DNA? 1.Size? 2.Composition- building blocks? 3.Purpose? 4.Structure?
DNA Deoxyribonucleic Acid. Importance of DNA DNA is the code for making proteins Those proteins control your physical features The directions for making.
Molecular Biology. The study of DNA and how it serves as a chemical basis of heredity.
7a. DNA and DNA Replication Living Environment Mr. Wiley 144.
DNA Structure and Replication Chapter 9, pgs
DNA Structure and Replication (Ch. 12-1, 12-2). DNA DNA is one of the 4 types of macromolecules known as a nucleic acid. DNA is one of the 4 types of.
Aim: What is DNA composed of?
DNA ..
DNA Replication.
DNA Structure and Replication Review!
DNA and Replication.
Chapter 11 DNA & Genes.
First Things First Chromosomes are made up of DNA DNA stands for Deoxyribonucleic Acid.
What is DNA? Instructions for making proteins
DNA Structure and Replication
Chapter 4 Section 1 Pages 86-89
DNA Structure.
Genetics.
What is DNA? Instructions for making proteins
DNA Biology By PresenterMedia.com.
DNA & Replication.
Ch.6s.1 Genetics: History and Structure of DNA
DNA Notes.
DNA Replication.
Deoxyribonucleic Acid
DNA & RNA.
Deoxyribonucleic Acid Found in the Nucleus Carries your genes
What is DNA? Instructions for making proteins
Chp. 12: DNA.
The Pieces of the Puzzle
Modern Genetics.
Replication Makin’ copies
The Structure and Function of DNA
DeoxyriboNucleic Acid
Presentation transcript:

Deoxyribonucleic Acid

Goals Who helped discover DNA? What does DNA look like? What is DNA made of? What is the job of DNA? Where does DNA come from?

Chargaff Who: What: When: Where How: Erwin Chargaff Discovered amounts of – Adenine = Thymine – Guanine = Cytosine 1950’s Columbia University, New York Isolated the bases and measured their amounts with chromatography

Chargaff

Franklin Rosalind Franklin Took 1 st photo of DNA double helix shape 1951 King’s College, London, England Used x-ray diffraction Who: What: When: Where How:

Photo 51

Watson & Crick James Watson & Francis Crick Constructed the first physical model of Deoxyribonucleic Acid (DNA) structure and double helix 1953 Cambridge University, Cambridge, England Borrowed the information from Chargaff, Franklin, and other scientists Who: What: When: Where How:

Watson & Crick

Appearance

Chromosomes

Your Job Using chromebooks or textbooks – With your table as your partner(s) answer the following. The oldest person is the designated writer. 1. What is a nucleotide? 2. How many parts are in a nucleotide? 3. What are those parts called? 4. One of those parts can change, list the 4 names for that part.

Structure DNA is made up of small pieces called Nucleotides

Nucleotide Structure (Quiz fill in the blank) 3 parts – Phosphate – Sugar – Nitrogen Base

Nucleotide Structure The sugar is deoxyribose – ose = sugar Nitrogen Bases – Adenine – Thymine – Guanine – Cytosine A = T C = G

DNA Structure DNA is like a ladder that has been twisted – Phosphate and sugar alternate up the sides – Bases pair to form the rungs or steps

Function (Job) and Where it comes from (Replication) Job – To carry genetic information – Contains all of your genotypic information – As a result it gives you your………….. Replication – Like living things, DNA comes from other DNA – Special process used to copy the information – Happens during Mitosis (which phase/subphase?)

Semi-Conservative Replication This how new DNA is made 1. The original strand is separated 2. Bases are added to make new segments 3. The new segments are glued together to form complete strands 4. Each new strand has half old DNA and half new DNA

Replication Animation /student_view0/chapter3/animation__ dna_replication__quiz_1_.html

The DNA Replication Steps (quiz matching) DNA Helicase unzips the DNA strands Single stranded binding proteins keep the strands apart RNA Primase lays down a primer DNA Polymerase adds new nucleotides Leading strand nucleotides added continuously Lagging strand nucleotides added in fragments DNA Ligase glues together the fragments

Quiz Stuff Scientists – Who/What/When/Where Nucleotides – 1. What is a nucleotide? 2. How many parts are in a nucleotide? 3. What are those parts called? 4. One of those parts can change, list the 4 names for that part. Replication steps

Semi-Conservative Replication This how new __________ is made 1. The original strand is ___________ 2. _________ are added to make new ______________ 3. The new __________ are __________ together to form complete ________ 4. Each new strand has ______________ DNA and _________________ DNA

The DNA Replication Steps (quiz matching) _____________ unzips the DNA strands ____________________________keep the strands apart ______________________ lays down a primer ______________________ adds new nucleotides __________________ nucleotides added continuously __________________ nucleotides added in fragments _________________ glues together the fragments