Aim: What is DNA composed of?

Slides:

Advertisements

Similar presentations

Chapter 12:DNA and RNA (Molecular Genetics).

Advertisements

Nucleic Acid Structure and Function. Function of DNA (DeoxyriboNucleic Acid) Contains sections called “genes” that code for proteins. These genes are.

DNA Structure. By the early 1900’s it was known that the chromosomes carry the genetic (hereditary) information Chromosomes consist of DNA (deoxyribonucleic.

Warm-Up Where is DNA found? What is DNA?

DNA: The Molecule of Heredity. DNA Structure Deoxyribonucleic acid. A macromolecule composed of two strands of monomers called nucleotides. These strands.

DNA: The Molecule of Heredity

The structure of DNA.

DNA: The Molecule of Heredity

DNA: Structure and Function. DNA Structure Deoxyribonucleic acid. A macromolecule composed of two strands of monomers called nucleotides. These strands.

DNA Deoxyribonucleic Acid. The DNA Connection What have you learned about inheritance, DNA, and cell division up to this point? How do genes determine.

Chapter 11: DNA and Genes (Part 1). 1. Although the environment influences how an organism develops, the genetic information that is held in the molecules.

Mrs. Degl Molecular Genetics DNA, or deoxyribonucleic acid, is the hereditary material in humans and almost all other organisms. Nearly every cell in a.

DNA. Nucleic Acids Informational polymers Made of C,H,O,N and P No general formula Examples: DNA and RNA.

DNA and RNA Replication

D.N.A. DeoxyriboNucleic Acid

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.

DNA & RNA The Nucleic Acids Remember: Each chromosome is a very long DNA molecule that contains many genes. The DNA controls the production of proteins.

Chap. 10 : Nucleic Acids & Protein Synthesis I. DNA – deoxyribonucleic acid - function – store and use information to direct activities of the cell and.

DNA. What is DNA? DNA (Deoxyribonucleic Acid)- is the information of life Achieves its control by determining the structure of proteins The complete instructions.

Warm Up! 1. What kind of biomolecule is DNA? 2. What function does it have? 3. What are the building blocks?

Have Your DNA and Eat It Too I will be able to describe the structure of the DNA molecule I will be able to explain the rules of base pairing I will understand.

DNA Introduction. What is DNA? Genetic information of life Type of Nucleic Acid Double Stranded.

DNA Structure and replication.  DNA (deoxyribonucleic Acid) carries the genetic code. DNA Structure.

DNA: STRUCTURE AND REPLICATION. DNA: The Code of Life  DNA is the molecule that contains all of the hereditary material for an organism  It is found.

DNA Replication Why does the DNA in a cell replicate before cell division?

DNA, RNA & Protein Synthesis. A. DNA and the Genetic Code 1. DNA controls the production of proteins by the order of the nucleotides.

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.

DNA HISTORY, STRUCTURE, & REPLICATION. WHAT IS DNA? Deoxyribose Nucleic Acid Polymer made out of sugars (deoxyribose), phosphates, and nitrogen bases.

DNA and RNA Structure and Function Chapter 12 DNA DEOXYRIBONUCLEIC ACID Section 12-1.

11.1 Notes DNA. DNA notes outline I. Where found? II. Scientists: A. Hershey & Chase: B. Franklin: C. Watson & Crick: III. Parts of DNA nucleotide 1.

Chapter 11 DNA & Genes.

DNA & Replication IN 91 & 93 Headings Vocabulary Important Words.

What is DNA? Instructions for making proteins

UNIT 4: DNA and RNA: EQ: How is the genetic code contained in DNA and how do cells pass on this information through replication? Standard: SB2a Distinguish.

DNA Replication & Protein Synthesis

DNA Structure and Replication

DNA and Replication.

DNA Structure and Replication

How does genetic information become traits we can observe?

What is DNA? Instructions for making proteins

DNA Biology By PresenterMedia.com.

What is the structure and function of DNA?

MODERN GENETICS DNA.

What is the structure and function of DNA?

IN 89 & 91 Headings Vocabulary Important Words DNA & Replication.

11.1 DNA DNA and Genes.

UNIT: DNA and RNA How does DNA store and transmit genetic information?

Deoxyribonucleic Acid Found in the Nucleus Carries your genes

DNA: the blueprint of life

Deoxyribonucleic Acid

What is DNA? Instructions for making proteins

Additional info: Genes & DNA

DNA STRUCTURE AND FUNCTION

DNA "The Blueprint of Life".

Introduction to DNA 1. Why do Biologists call DNA “the genetic blueprint for life”? 1a. DNA contains all the information an organism needs to make all.

DNA "The Blueprint of Life".

Warm-up: DNA What does DNA stand for? Where do we find DNA?

Modern Genetics.

Chapter 12 DNA and GENES.

Replication Makin’ copies

The Structure and Function of DNA

DNA Structure and Replication

Presentation transcript:

Aim: What is DNA composed of? Modern Genetics DNA Aim: What is DNA composed of?

What is DNA? A. Deoxyribonucleic acid. B. A gene is a portion of DNA in a chromosome. C. Organic compound. Polymer (chain) of nucleotides. DNA is the blueprint of life.

What is a Nucleotide? A. A nucleotide is made up of 3 parts: 1. Phosphate group (PO4). 2. Deoxyribose molecule (5 carbon sugar). 3. Nitrogenous base a. There are only 4 bases: A-adenine; T-thymine; G-guanine; C-cytosine

What is a Nucleotide? b. There are 4 base pair combinations (complimentary pairs): A-T; T-A; C- G; G-C c. Base pair combinations vary in all humans, making us all look different.

Nitrogenous Bases T C A G

Nucleotide Nitrogenous Base Phosphate Group Deoxyribose molecule (5-carbon sugar)

Who Figured Out What DNA Looked Like? James D. Watson & Francis Crick Watson Crick

Watson-Crick Model A. DNA is arranged as a double helix (twisted ladder). B. The sides of the ladder are made up of alternating phosphate & deoxyribose molecules. C. The rungs or steps of the ladder are nitrogenous base pairs.

Watson-Crick Model D. Double-helix model explains how & why the daughter cells resulting in mitosis are identical copies of the original parent.

Double Helix Model

DNA Replication A. Replication is the process which new identical DNA molecules are formed. 1. DNA unzips because the weak hydrogen bonds between base pairs break. 2. The free floating nucleotides fasten to complimentary bases on old DNA strand. 3. Results in 2 DNA helixes each with an old & new strand.

Gene Expression A. Genes control the synthesis of proteins with the help of RNA B. One Gene-One Polypeptide Hypothesis: 1 gene controls the production of 1 polypeptide (protein).