Agenda for 11/25- DNA Replication

Slides:

Advertisements

Similar presentations

Deoxyribonucleic Acid

Advertisements

Chapter 12: DNA The Blueprint of Life.

Defined: Molecule that stores genetic information Monomer: Nucleotide Millions of nucleotides bond to make nucleic acids Gene: section of DNA that holds.

Chapter 10 Notes Structure of DNA. DNA is Made up repeating units of nucleotides Three parts of a Nucleotide are: 1. Deoxyribose sugar 2. Phosphate group.

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.

This Powerpoint is hosted on Please visit for 100’s more free powerpoints.

DNA Structure DNA consists of two molecules that are arranged into a ladder-like structure called a Double Helix. A molecule of DNA is made up of millions.

 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 D – Deoxyribo N – Nucleic A – Acid.

Do Now: Do Now: Take out homework. Then… 1. What is the monomer of nucleic acids? 2. What are the 3 parts a DNA strand? 3. What are the 4 different nitrogenous.

Do Now 1.What are the three parts of a nucleotide? - Sugar (deoxyribose), phosphate, nitrogen base 2.Adenine (A) bonds with ____________ - Thymine (T)

Defined: Molecule that stores genetic information Nucleotides: Three repeating units of nucleic acids –1) Sugar –2) Phosphate Group –3) Nitrogen Base.

Defined: Molecule that stores genetic information Monomer: Nucleotide Millions of nucleotides bond to make nucleic acids Gene: section of DNA that holds.

DNA Replication Every time a cell reproduces by mitosis or a gamete is formed by meiosis, DNA is copied during Interphase in a process called replication.

DNA’s Structure. The Shape of DNA DNA has a shape called a Double Helix When flattened out it would look like a ladder.

3.3.1 DNA Structure DNA is a polymer of Nucleotides 1.Sugar (5C) 2.Phosphate Group (C-5) 3.Nitrogenous Base (C-1) Phosphate Pentose Sugar Nitrogenous.

DNA Structure DNA consists of two molecules that are arranged into a ladder-like structure called a Double Helix. A molecule of DNA is made up of millions.

1 2 DNA 3 Chromo…What? 4 Replication 5 The Cell Cycle.

DNA Structure & Replication Deoxyribonucleic acid.

The Structure of DNA Read the title aloud to students.

DNA Replication.

DNA: Structure and Replication DNA DNA. DNA is often called the blueprint of life. DNA contains the instructions for making proteins within the cell.

DNA Structure DNA consists of two molecules that are arranged into a ladder-like structure called a Double Helix. A molecule of DNA is made up of millions.

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

Defined: Molecule that stores genetic information Nucleotides: Three repeating units of nucleic acids –1) Sugar –2) Phosphate Group –3) Nitrogen Base.

DNA Structure and Replication Chapter 9, pgs

Defined: Molecule that stores genetic information Monomer: Nucleotide Millions of nucleotides bond to make nucleic acids Gene: section of DNA that holds.

DNA Adenine and Thymine Guanine and Cytosine nucleotide Bases DOUBLE HELIX.

Chapter 25 DNA replication.

DNA Structure and Replication

Nucleic Acids NUCLEIC ACIDS AND DNA.

DNA Replication & Protein Synthesis

Agenda 4/23 and 4/24 DNA replication and protein synthesis review

DNA Replication Notes Unit 5.

Bell Work What are the base pairs?

DNA Replication Created by Kim Useglia-former student teacher

Journal 5-3: Modeling DNA

DNA & Replication.

Nucleic Acids and Protein Synthesis

Chapter 13 packet: DNA and Protein Synthesis Part I

AIM: How are DNA molecules structured

DNA Structure & Replication

Introducing: DNA.

Phenomenon: DNA is the code to life

Deoxyribonucleic Acid (DNA)

Structure & Replication

Mrs. Ragsdale Biology SL

DNA Structure & Replication

REVISION: DNA STRUCTURE & REPLICATION

DNA Part 1: DNA Structure and Replication

DNA Replication.

DNA Structure & Function

From Gene to Protein Part 1: Replication.

DNA Replication Hydrogen bonds Nucleotide Sugar-phosphate backbone Key

DNA Replication Review

Modern Genetics.

DeoxyriboNucleic Acid

Presentation transcript:

Agenda for 11/25- DNA Replication Bellwork, Homework check (turn in lab, any work from yesterday) New Information: review DNA structure, DNA replication Lab: Extracting DNA from strawberries

Bellwork: Scientists compared the DNA sequence of a gene in four mammals. A portion of the gene’s DNA sequence in each mammal is shown below. Mammal DNA Sequence 1 TCTCAACTACAA 2 TCTCAGCTGCAA 3 ACTCAGCTACAA 4 TCTCAGCTGCAG Based on the sequence data, which of the mammals are most closely related to each other? A. mammals 1 and 2 B. mammals 1 and 3 C. mammals 2 and 4 D. mammals 3 and 4

DNA Structure Double Helix. made up of millions of tiny subunits called Nucleotides. Phosphate group Pentose sugar (deoxyribose) Nitrogenous base Phosphate Nitrogenous Base Pentose Sugar

Nucleotides Phosphate and sugar backbone the nitrogen bases form the “rungs”. There are four types of nitrogenous bases.

Nucleotides Each base will only bond with one other specific base (Chargaff’s Rule, or Base-Pair Rule). Adenine (A) Thymine (T) Cytosine (C) Guanine (G) Form a base pair. Form a base pair.

Complementary base pairing: the order of the bases in one strand determines the order of the bases in the other strand. C

DNA Replication Enzymes “unzip” DNA (helicase)- breaks hydrogen bonds holding the two strands together. DNA polymerase adds new nucleotides to the old strands, creating 2 new DNA molecules Each new DNA molecule has an old strand and a new strand (semi-conservative)

DNA Replication (click title for a video clip) Errors minimized by “proofreading” (DNA polymerase) DNA replication precedes cell division (mitosis and meiosis)

DNA Replication Complete the worksheet in pairs. Review your answers with the other pair at your table. We will review as a class in 10 minutes.

DNA Extraction Lab We’ll read through the lab procedure together. You can use this same procedure to extract DNA from any living thing (including your own DNA!) Safety is critical! No gum, no food, no drinks. Always assume chemicals are dangerous! (even though these are relatively safe if you don’t consume them).