Donations Requested We could use some… Gummy Bears (we need lots of these)Gummy Bears (we need lots of these) Red TwizzlersRed Twizzlers Black TwizzlersBlack.

Slides:



Advertisements
Similar presentations
DNA Notes.
Advertisements

GPS Standard S7L3 Students will recognize how biological traits are passed on to successive generations. a. Explain the role of genes and chromosomes.
DNA DNA. DNA is often called the blueprint of life. In simple terms, DNA contains the instructions for making proteins within the cell. Proteins control.
Nucleic Acid Structure and Function. Function of DNA (DeoxyriboNucleic Acid) Contains sections called “genes” that code for proteins. These genes are.
Journal Entry: What is DNA? What are the subunits of DNA? Objectives:
DNA Deoxyribonucleic Acid. The DNA Connection What have you learned about inheritance, DNA, and cell division up to this point? How do genes determine.
Watson and Crick Watson and Crick studied the work of others to determine the structure of DNA Figured that it is a “Double Helix”: –Twisted ladder.
DNA “Deoxyribonucleic acid”
DNA Replication.
Chapter 11 DNA and Genes Section 1 DNA: the Molecule of Heredity.
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 The Structure of DNA. What does the DNA of all these organisms have in common? They all share a universal genetic code.
DNA Structure and Replication 8.2 and 8.3
DNA Deoxyribose Nucleic Acid. DNA (deoxyribonucleic acid) Genetic Information in the form of DNA is passed from parent to offspring. Genes are the code.
Warm UP Illustrate how the chromosome number in a sexually reproducing organism with 8 chromosomes remains constant from one generation to the next by.
DNA: the blueprint of life. Where do you get your DNA? DNA is passed from parent to offspring. Where do we find DNA? DNA is in the nucleus of every cell.
Question: Why don’t we all look alike? DNA – The Code for Life.
Pages: Evolution: The Role of DNA. Pages: Evolution: The Role of DNA.
DNA Structure and DNA Replication How cells make a copy of their DNA before they divide.
Question: Why don’t we all look alike? DNA – The Code for Life.
What Does It Look Like? What Does it Do?
What do genes look like?.
DNA.
Characteristic of Life!!
The Genetic Code.  It took almost 100 years after the discovery of DNA for scientists to figure out that it looks like a twisted ladder.  When James.
Warm Up! 1. What kind of biomolecule is DNA? 2. What function does it have? 3. What are the building blocks?
DNA Structure. Essential Questions for Today What is DNA? What is a gene? What is the basic structure of DNA? What is the function of DNA?
DNA Structure, Function & Replication. DNA stands for… DeoxyriboNucleic Acid.
DNA Structure, Function & Replication. DNA stands for… DeoxyriboNucleic Acid.
Notes 4-3 continued… DNA. Scientists Rosalind Franklin used X-ray method to take photographs of DNA Watson and Crick use the photographs and.
* 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 (Deoxyribonucleic Acid). What is DNA? DNA is an encoded molecule that determines traits by giving instructions to make proteins.
DNA History, Structure and Function. What is DNA? Deoxyribonucleic Acid long chain moleculeIt is a long chain molecule that carries the code for the characteristics.
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.
Test Review. DNA is  Hereditary material that is passed from parents to offspring  Made up of nucleotides  The instructions for making proteins  All.
THE GENETIC CODE THE STRUCTURE OF DNA. WHAT IS THE DIFFERENCE BETWEEN CHROMOSOME, GENE, AND DNA? A gene is a section of DNA that gives the code for a.
DNA Deoxyribonucleic Acid. Importance of DNA DNA is the code for making proteins Those proteins control your physical features The directions for making.
7a. DNA and DNA Replication Living Environment Mr. Wiley 144.
Donations Requested We could use some… Gummy Bears (we need lots of these)Gummy Bears (we need lots of these) Red TwizzlersRed Twizzlers Black TwizzlersBlack.
DNA and RNA Structure and Function Chapter 12 DNA DEOXYRIBONUCLEIC ACID Section 12-1.
Structure and Function of DNA We have come a long way on that old molecule [DNA].
DNA. NUCLEOTIDES: Makes up DNA DNA is made of only 3 units: Sugar Phosphate Base.
Aim: What is DNA composed of?
DNA Deoxyribonucleic Acid
DNA Replication.
DNA It’s a nucleic Acid…specifically it’s Deoxyribonucleic Acid.
THE INSTRUCTION MANUEL FOR BUILDING A BODY
DNA The Secret Code.
DNA Structure and Replication Notes
DNA The Genetic Material.
DNA It’s a nucleic Acid…specifically it’s Deoxyribonucleic Acid.
THE INSTRUCTION MANUEL FOR BUILDING A BODY
DNA The Secret Code.
DNA Biology By PresenterMedia.com.
DNA Structure.
What is the structure and function of DNA?
Cells, Heredity & Classification
Ch.6s.1 Genetics: History and Structure of DNA
DNA Notes.
DNA.
Science Log: DNA Bubble Map
What is the structure and function of DNA?
Introducing: DNA.
Agenda: Warm-Up DNA Overview DNA Gummy Model
The Pieces of the Puzzle
DNA.
DNA: The molecule Year 10 Human Biology.
Presentation transcript:

Donations Requested We could use some… Gummy Bears (we need lots of these)Gummy Bears (we need lots of these) Red TwizzlersRed Twizzlers Black TwizzlersBlack Twizzlers Why? Well…we are going to be making models of… DNA! Why? Well…we are going to be making models of… DNA! What is that…here we go 

Genetics The study of heredity…whatever that means. Heredity-The passing of traits from parents to progeny (offspring)

DNA 1.It’s a nucleic Acid…specifically it’s D eoxyribo n ucleic A cid. 2. This is the substance (it’s a molecule) that determines inherited characteristics. What’s that mean…to a human! Inherited…means it you get it from mom and dad. A characteristic is something like…eye color, the shape of your face…your blood type.

The Parts of DNA DNA is made up of NUCLEOTIDESDNA is made up of NUCLEOTIDES NUCLEOTIDES are made of three parts:NUCLEOTIDES are made of three parts: 1.A Pentose Sugar: Deoxyribose…it’s a sugar with 5 carbons (penta=5, -ose=sugar). 2.A Phosphate Group…that’s a compound with a PO 4 group. 3.One of four different Nitrogenous Bases: Adenine Thymine Cytosine Guanine A T C G

The Structure of DNA The DNA molecule looks like a ladder that has been twisted.The DNA molecule looks like a ladder that has been twisted. This shape is called a DOUBLE HELIX.This shape is called a DOUBLE HELIX Irwin Chargaff figures out that there is always the same amount of adenine as thymine, and there was the same amount of cytosine as guanine…smart human I gotta say.1950 Irwin Chargaff figures out that there is always the same amount of adenine as thymine, and there was the same amount of cytosine as guanine…smart human I gotta say.

*Extremely smart dudes/dudettes warning* 1.Rosalind Franklin: used X-ray diffraction to determine that the DNA molecule was a spiral. 2.James Watson & Francis Crick: figured out that the spiral was a double helix (TWO spirals…a twisted ladder) and made a model. Let’s see you use the properties of high energy electromagnetic waves to discover the shape of an organic macromolecule …yeah…that’s what I thought. Let’s see you use the properties of high energy electromagnetic waves to discover the shape of an organic macromolecule …yeah…that’s what I thought.

The Structure of the Double Helix The Rails of the ladder are alternating molecules of sugars and phosphates.The Rails of the ladder are alternating molecules of sugars and phosphates. The Rungs of the ladder are the nitrogen (nitrogenous) bases that are attached to the sugars.The Rungs of the ladder are the nitrogen (nitrogenous) bases that are attached to the sugars.

Here’s What it Looks Like

Here’s Where it Fits in With Cells…and YOU!

Here’s Another View…

Genes are… A GENE is a set of chemical instructions for assembling a protein. DNA is the molecule that carries these genetic instructions.A GENE is a set of chemical instructions for assembling a protein. DNA is the molecule that carries these genetic instructions. Within a gene, each group of three nitrogenous bases codes for one amino acid.Within a gene, each group of three nitrogenous bases codes for one amino acid. A sequence of amino acids is linked to make a protein.A sequence of amino acids is linked to make a protein. Proteins are fundamental to the function of cells and the expression of traits.Proteins are fundamental to the function of cells and the expression of traits.

Here’s The Relationship To Chromosomes

Replication When DNA copies (every time a cell divides), it splits down the middle separating in between the base pairs.When DNA copies (every time a cell divides), it splits down the middle separating in between the base pairs. The new strand of bases is complimentary…that means that where there’s an A (adenine), there will be a T (thymine) to match with it. Where there is a C (cytosine), there will be a G (guanine) to match with it.The new strand of bases is complimentary…that means that where there’s an A (adenine), there will be a T (thymine) to match with it. Where there is a C (cytosine), there will be a G (guanine) to match with it. Write the complimentary strand for this sequence: GAATTCGCGGATWrite the complimentary strand for this sequence: GAATTCGCGGAT

Here’s What You Should Have Here’s What You Should Have GAATTCGCGGATCTTAAGCGCCTA

Enzymes (an enzyme is a protein…look for the –ase) *There are a number of enzymes that are involved in this process:*There are a number of enzymes that are involved in this process: –DNA helicase: unzips the DNA –DNA polymerase: lines up the new bases –DNA ligase: “glues” sections together *Bonus info…no extra charge, and no…you don’t need to know it. But some day…

Genetic Engineering By understanding DNA we can…you tell me…it’s in your bookBy understanding DNA we can…you tell me…it’s in your book